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CDS Physics - Semester I Exam Review (Dec 2016) Flashcards | StudBud
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CDS Physics - Semester I Exam Review (Dec 2016)
CDS Physics - Semester I Exam Review (Dec 2016)
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1
What is the first step of the scientific method?
Draw Conclusions
Make a Hypothesis
Observations
Conduct an Experiment
2
Which has three sig figs?
3.300
30030
0.0300
3.0
3
Vertical and horizontal velocity are _____________ of each other.
Dependent
Independent
Opposite
Equal
4
The velocity of a ball at its highest point (thrown straight up) that's in the air for 10 sec.
4 m/s
5 m/s
3 m/s
0 m/s
5
Based on the principle of inertia, which is true?
The more mass an object has, the more inertia it has
If an object is moving then it will be stopped
The more weight an object has, the more inertia it has
If an object is still then it will start moving
6
A car drives 125.0 km East then 65.0 km North. What it's displacement?
141 km NE
165 km NE
141 km SE
165 km SE
7
Explanation (combination of facts, laws and models) that explains a large-scale phenomenon.
Theory
Fact
Law
Hypothesis
8
What is measurement?
quantifying a prop. and assessing its mag. by attaching a #.
the action of measuring something
Capturing physical quantitates
9
An object in motion…
will stay in motion until stopped by a net external force
Will stay in motion
will continue to move when stopped by a net external force
Will stop eventually
10
Which is a scalar quantity?
The duration of the flight
The average velocity of the plane
The displacement of the flight
The acceleration of a plane as it lands
11
Which will have the greatest maximum height?
70°
39°
10°
45°
12
Free body diagrams are used to visualize an object's:
Projectile
Mass
Inertia
External Forces
13
According to Copernicus...
Earth is not at rest and moves around the sun
All objects want to be in a state of rest
The principle of inertia
All objects fall at the same rate regardless of weight
14
Who was the first to suggest a heliocentric model of the earth?
Copernicus
Aristotle
Da Vinci
Galileo
15
What is true about mass?
It's measured in Newtons
It's a force
It's extrinsic
It's scalar
16
Numerical data is called:
Quantitative Data
Qualitative Data
Useless Data
17
What finding the resultant of a vector, the process is called:
Combining/Adding
Resolving
Resolutioning
Subtracting
18
Which of these is NOT a vector quantity?
Speed
Displacement
Velocity
Acceleration
19
What question is answered with displacement?
In what direction and how fast?
How fast and how far?
How far and in what direction?
20
Which of these units represents a larger amount?
L
dL
mL
hL
21
Which is faster, 810 km/yr or 33 mm/s?
33 mm/s
810 km/y
Neither one
They are the same
22
What are the three main base quantities?
Length, Time, Weight
Mass, Length, Time
Velocity, Temperature, Length
Mass, Height, Time
23
Which will have the farthest range?
44°
10°
70°
25°
24
Use sig figs... 2.50 cm x 8.900 cm x 4.566 cm =
102 cm
101.6 cm3
101.5 cm3
102 cm3
25
What does the slope of this graph represent?
Velocity
Acceleration
Displacement
Speed
26
Mass is most closely related to:
Weight
Gravity
Inertia
Displacement
27
An object is speeding up, the sign of velocity is ____ and the sign of acceleration is ___.
+, +
-, -
-, +
+, -
28
A type of power that doesn't require a generator.
Hydropower
Wind Power
Solar Power
Nuclear Power
29
What's the range of a cannonball launched horizontally from a 60 m cliff at 5.0 m/s?
18 m
16 m
17 m
15 m
30
What is the correct measurement for this volume?
43.0 mL
40 mL
43 mL
40.4 mL
31
If an object has a mass of 36.7 kg on earth, what is its weight?
3.67 N
367 N
36.7 lbs.
367 kg
32
What is the path travelled by a projectile?
Displacement
Circular Trajectory
Parallel Line
Parabola
33
What is the first step of the scientific method?
Write a Hypothesis
Make Observations/Identify the Problem
Conduct a Controlled Experiment
Ask Ms. Nicholson for Help
34
The branch of physics that looks at "how" things move.
Momentum
Dynamics
Optics
Kinematics
35
What is the process by which atoms split?
Fusion
Fisation
Fission
Continuation
36
What is the value for the acceleration due to gravity? (On Earth)
-10 m/s2
-10 m/s
10 m/s
10 m/s2
37
Who came up with the laws of motion?
Isaac Newton
Galileo
Albert Einstein
Da Vinci
38
What is a force on a FBD that opposes the motion of an object?
Fgravity
Fnormal
Fapplied
Ffriction
39
Which shows increasing velocity and decreasing acceleration?
B
A
C
40
Which will land first, a dropped bullet or a shot bullet?
Dropped
Shot
Both will land at the same time
41
Which is a vector quantity?
Speed
Velocity
Mass
Displacement
42
The study of matter and energy and their interactions.
Biology
Engineering
Chemistry
Physics
43
What was the displacement from 12 s to 14 s?
8 m
-8 m
2 m
-6 m
44
The branch of physics that look at
why
things move.
Kinematics
Dynamics
Momentum
Optics
45
A running man slows down from 9.0 m/s to rest in 3.5 seconds. What is his acceleration?
-3.5 m/s2
-2.6 m/s2
-5.8 m/s2
-2.5 m/s2
46
If an object at rest falls down, how far down will it travel after 3.0 seconds?
62 m
20 m
45 m
30 m
47
Use Sig figs... 34.5 m + 89.001 m + 24 m =
150 m
148 m
147.5 m
147 m
48
A student throws a pencil at a Vo of 30 m/s. When will the pencil reach its highest point?
3.5 s
3,000 ms
6s
5.3 s
49
What does the slope of this graph represent?
Speed
Velocity
Displacement
Acceleration
50
A student calculates a mass as 247 g when in reality it's 252 g. Find his % error.
1.9%
1.98%
2%
2.02%
