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Semester 1 Physics Review Flashcards | StudBud
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Semester 1 Physics Review
Semester 1 Physics Review
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Mechanics Newtons laws of motion gravity
Flashcards
26 cards
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Practice quiz
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Questions
26
Answers
1
Doubling a force will....
Double an object's displacement
Double an object's velocity
Double an object's acceleration
Double an object's mass
2
Who discovered the Laws of Motion?
Isaac Newton
Einstein
Donald J. Trump
Galileo
3
I fell asleep in space and woke up out of reach of my space ship! What should I do?
Throw something in the opposite direction of the direction you want to move
Pray for rescue!
Cry for help!
Use profanity on the radio!
4
How can we quantify forces?
We can calculate it using a=Δv/Δt
We can measure it with a mass balance
We can only gather qualitative data on forces
We can calculate them using F=ma
5
Weight is...
The same on the moon and Mars.
How much the force of gravity pulls on a given mass in newtons
How much matter a substance contains.
Measured in Kg
6
Forces that combine and net force is not equal to zero.
Unbalanced Force
Velocity
Friction
Balanced Force
7
Force that resists the motion of two surfaces that are touching.
Friction
Contact Force
Gravity
Non-Contact Force
8
When forces are
unbalanced
the motion accelerates
True
False
9
An objects motion can not change unless it is acted upon by an unbalanced force.
True
False
10
__________ is when opposite forces are not equal; causes motion of an object
Unbalanced Force
Force
Unballanced Force
Unbalanced
11
The combination of all the forces that act on an object.
Net Force
Combined Force
Contact Force
Non-contact Force
12
True or False: Mass and Weight are the same thing in Physics
True
False
13
Heavier objects fall faster than lighter ones
False
True
14
Scientists measure forces in....
degrees
Newtons
yards
centimeters
15
Gravity is....
A displacement measured in m.
A velocity, measured in m/s
An acceleration, measured in m/s2
A Force, measured in Newtons
16
The person walks from A to B to C to D. What is their
displacement
?
8 m East
24 m
16 m
12 m
17
Which is an example of an
UNBALANCED FORCE
acting on an object
The apple that hit Sir Isaac Newton on the head after falling from a tree.
An astronaut moving at a constant velocity of 2m/s away from their shuttle
A book at rest on a table.
Coasting on a bicycle down a large hill without pedalling.
18
Mass is...
A lump
The true weight of an object
How much matter a substance contains
Measured in Newtons
19
Who will move further away in this chest bump?
Patrick the starfish. Bigger mass means bigger force.
Neither: the forces will be equal and opposite
Both: the forces combine to make a big oceany mess!
Sponge Bob. Less mass means the force will accelerate him faster
20
A mouse runs from a cat at 1 m/s toward a hole that is 3m away. The cat starts 20 m away at 5m/s. Will the cat catch it
yes, between 3 and 4 s the mouse is lunch
No, the mouse makes it in 3s
21
Which one will do more damage?
The yellow car
The blue truck
22
Which of the following are different kinds of
forces
All of the above
Contact forces
Magnetism
Gravity
23
The person runs from A to B and then B to C. What is their
displacement
?
There is not enough information to answer this problem
7m
9m
5m
24
Which of the following is
NOT
a
velocity
2 m/s West
45 m/s
-200 m/s down
12 m/s up
25
What happens to motion when forces are
balanced
?
There is no acceleration
There is a little acceleration
an unbalanced force occurs
nothing happens
26
Forces that combine and have net force = zero
Gravity
Balanced Force
Unbalanced Force
Friction
