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Motion Unit Test Review for Physical Science Flashcards | StudBud
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Motion Unit Test Review for Physical Science
Motion Unit Test Review for Physical Science
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1
What type of system is this?
Open System
Isolated System
Closed System
None of the above
2
Solve the Following Problem:
119 miles
743 miles
363 miles
121 miles
3
What happens to the nucleus during nuclear fusion?
the nucleus is unchanged
the nucleus splits
Two atoms are put together
4
What is this formula?
The Law of General Relativity
The Law of Universal Gravatation
None of the above
Coulomb's Law
5
The Law of Universal Gravitation is only observable when:
The objects are falling
The objects are attracted to magnets
The masses of the objects are huge
Friction is acting upon them
6
Some examples of graphs used in Science are:
Pie Charts- percentages
Bar Graphs- non numerical and discrete
All of the above
Line Graphs-used when variables affect each other
7
E = P x t : A light has a power rating of 2 and you use it for 2 seconds, how much energy is used?
4 watts
2 joules
4 joules
2 watts
8
Beta decay occurs when a:
electron enters the nucleus
neutron changes to a proton and electron
neutron changes to a proton and energy
proton changes to neutron & electron
9
Which is the weakest of the four fundamental forces?
Strong force
Gravitational force
Electromagnetic force
Weak force
10
Law of conservation of energy is?
States that energy cannot be created but destroyed
States that energy can be created or destroyed
States that energy cannot be created or destroyed
States that energy can be created but not destroyed
11
What does the dependent variable do?
It responds to the independent variable
It stays the same
It is manipulated
It responds to the constant variable
12
What is inertia?
a group of particles that combine\ to make force
none of the above
a tendency to do nothing or to remain unchanged
the same thing as gravity
13
What formula expresses Newton's 2nd Law?
w = m ⋅ g
F = m ⋅ a
None of the above
p = m ⋅ v
14
Why does gravity exist?
To keep us from floating away
The moon sharing gravity with the Earth
The sun's gamma rays
The core of the planet and the atmosphere
15
What is this formula?
Coulomb's Law
The Law of Universal Gravatation
The Law of Conservation of Energy
None of the above
16
who discovered gravity
Albert Einstein
James Prescott Joules
Sir Isaac Newton
Stephen Hawking
17
What is gravity?
The application of science for practical purposes
A force of attraction between objects due to their mass
Newtons (N)
The force that resists the start of sliding motion between two surfaces
18
What is Newton's 3rd Law of Motion?
There is no third law
Accelerations determined by size of force and mass of object
All of the above
For every action there is an equal and opposite reaction
19
What are the types of friction?
kinetic and potential
Friction
Sliding, static, fluid, and rolling
Sliding, static, and moving
20
Pseudoscience
A collection of beliefs
A true statement
A collection of hypotheses
A false statement
21
An isolated system exchanges
only matter with its environment
matter and energy with its environment
neither energy nor matter with its environment
only energy with its environment
22
What is physics?
The study of how organisms adapt and evolve
The study of matter and energy and how the two interact.
The study of how chemicals are used in everyday life
The study of living things
23
An example of an open system is:
Keeping your tea in a thermos
Storing leftovers in Tupperware
Our universe
Boiling a pot of water
24
The potential energy of an elastic object that is being stretched
Nuclear Energy
Chemical Energy
Elastic Energy
Sound Energy
25
when acceleration and velocity are in the same direction, the speed will
Decrease
Increase
Stay the same
26
The weak nuclear force is responsible for:
Holding the nucleus togther
Nuclear fusion
Creating new nuclei
Particle decay
27
This has what type of energy?
Chemical
Elastic
Heat
Sound
28
According to Newton's First Law of Motion...
An object at rest remains at rest unless acted upon
An object at rest eventually begins to move.
An object at rest always remains at rest.
An object in motion eventually comes to a halt.
29
1 horsepower = ______________ watts
96
25
746
1000
30
Friction is:
Something that make an object move faster
A push or pull
Surface resistance to relative motion
An example of balanced forces
31
What is James Prescott Joules' profession?
British Biologist
American Chemist
American Botanist
English Physicist
32
Power and time have this type of relationship:
Inverse
Converse
One-to-one
Direct
33
What is mechanical energy?
energy involved in the reaction of molecules.
energy gained by the physical movement of an object.
energy produced from flow of electric current through a conductor.
energy produced by sound vibrations.
34
What is Newton's 3rd Law of Motion?
F=ma
For every action there is a complete and opposite reaction.
An object in motion will stay in motion unless acted upon by another force.
No
35
The slope of a distance vs time graph tells you the
Acceleration
Distance
Speed
Time
36
The formula for calculating acceleration is:
a = s/t
a = d/t
s = d/t
a = v 2 - v 1/t
37
Unbalanced forces cause an object to....
Repel
Move
Disappear
Stay still
38
Electromagnetism is...
the creation of a magnetic field due to an electric current
a stationary electric charge, typically produced by friction
the movement of protons through a current
the movement of electrons though a current
39
When acceleration and velocity are in opposing directions, the speed will
Decrease
Stay the same
Increase
40
Science is the study of...
The natural world
Opinions
Only living things
Laws and Theories
41
Which of Newton's laws does this relate to?
3rd
5th
1st
2nd
42
In beta minus decay, a neutron is converted to a proton, and the process creates an electron and a/an:
Electron Antineutrino
Electron Neutrino
Ionic Electron
Inverted Electron Fusion
43
Based on Coulombs Law, as two objects move apart, their attraction is
decreasing
staying the same
not changing
increasing
44
Which of these objects have the most momentum
A light object moving fast
A heavy object moving slowly
A light object moving slowly
A heavy object moving fast
45
What are microwelds?
When you weld microscopes together
Small bumps that speed up a force's movement of an object
When microscopic bumps on two srfaces stick together
Small arc welds
46
Which of these are physical sciences?
Microbiology
Chemistry
Marine Science
Anatomy and Physiology
47
The transfer of energy by electromagnetic waves is:
Thermal Conductor
Heat
Sublime
Radiation
48
is exploding nuclear fission or nuclear fusion?
nuclear fission
nuclear fusion
49
The Order of the Scientific Method is....
Observe, Ask a ?, Make Hypothesis, Do Experiment, Gather Data, Conclusion
Ask a ?, Observe, Make Hypothesis, Do Experiment, Get Data, Conclusion
Ask a ?, Observe, Make Hypothesis, Gather Data, Do Experiment, Conclusion
Observe, ask ?, Make Hypothesis, Do Experiment, Conclusion, Gather Data
50
Power is...
The ability to do work
The tendency of an object to stay on it's current trajectory
The rate at which work is done (the time it takes)
Exerting a force on something, so that it moves a distance
51
In force diagrams, the force is shown as a/an:
Box
Arrow
Cube
Number
52
As the amount of power increases, the amount of work does this:
Increases
Stays the same
Doubles
Decreases
53
List the four fundamental forces in nature.
Gravitational, Electromagnetic, Contact, Nuclear.
Gravitational, Normal, Tension, Friction.
Gravitational, Electromagnetic, Strong Nuclear, Weak Nuclear
Gravitational, Contact, Strong Nuclear, Weak Nuclear
54
A strong nuclear force is the attraction force that binds
electron and neutrons together
protons and electrons together
protons and neutrons together
neutrons together
55
What is the scientific method?
A series of theories that are accepted by the scientific community
A new idea that a scientist is sure will support their hypothesis
A testable question
Series of steps that scientists use to solve & awnser problems
56
Dividing distance by time will give you an object's
Location
Density
Acceleration
Speed
57
Scientific thought has the ability to...
Never change
Rapidly change
Use people's opinions
Self-correct & improve
58
Which of the Fundamental Forces are Long-range?
Strong and Gravity
Gravity and Electromagnetism
Strong and Electromagnetism
Weak and Gravity
59
A line of best fit is:
A line drawn to swerve around as many data points as possible
A straight line drawn through the center of a group of data
A line drawn through the center of only the median data values
A line drawn to highlight the dissimilarities of the data
60
What is an example of negative acceleration?
A train slowing down
Sliding down a hill
Skydiving out of an airplane
A drift car speeding up
61
In which of the free-body diagrams is there an applied force?
B
A
C
D
62
True or False. A scientific theory is 100% proven to be true.
False
True
63
What type of graph would be used to display this type of data?
Line Graph
All of the above
Bar Graph
Pie Chart
64
In a theory, vs a law, scientific information has not been:
Discovered
Found
Proven
Disproven
65
What is energy?
Energy is the abiliy to do work or make a change
All of the above
Energy can be created and/or destroyed
Energy only has the ability to make things stop
66
Which of the following is NOT a scientific discipline?
Astrology
Zoology
Anatomy
Chemistry
67
Independent Variable
y axis
x axis
68
What impacts Gravitational Potential Energy?
Size
Shape
Height
Volume
69
Which of the following occurs in nuclear fission?
A nuclear reaction where a neutron is split into quarks
A nuclear reaction where alpha particles are released
A nuclear reaction where two nuclei combine into one
A nuclear reaction where one nucleus splits into two
70
Negative work is:
An object that does not move
An object moves in same direction as the direction as the app force
Work can't be negative!
An object moves in opposite direction as the direction as the app force
71
Which one of these is NOT one of Newton's Laws of Motion?
For every action there is an equal and opposite re-action.
An object can stop once it runs out of energy
An object will remain at rest unless force acts on it
Acceleration is produced when a force acts on a mass.
72
This thermal energy in action, true or false?
True
False
73
What are the controlled variables?
The thing you measure
The thing you change
The thing you are experimenting on
The things you keep the same
74
In a closed system THIS can enter and leave, while THIS cannot:
Potential Energy; Kinetic Energy
Matter; Energy
Particles; Potential Energy
Energy; Matter
75
Weight is:
density x volume
volume x mass
volume x gravity
mass x gravity
76
Balanced forces...
Change direction
Increase speed
Change position
Cancel each other out
77
Work is...
The tendency of an object to stay on it's current trajectory
The ability to do things
The rate at which work is done (the time it takes)
Exerting a force on something, so that it moves a distance
78
Which of these is NOT one of Newton's Laws?
force = mass x acceleration
E = mc^2
All actions have an equal and opposite reaction
An object in motion stays in motion
79
Which of the following would be an INEFFECTIVE frame of reference?
Ferris Wheel
Stop Sign
Bridge
Statue
80
Inertia is
also known as which of Newton's Laws of Motion?
2nd
1st
Trick question! Inertia has nothing to do with Newton's Laws!
3rd
81
Which of the following is NOT work?
Lifting the box of rocks up over your head
Carrying the box of rocks 2 miles to your campsite to build a fire pit
Picking up a really heavy box of rocks
All of the above
