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WorksheetsPS Benchmark 3 Study Guide
Total questions: 46
Worksheet time: 23mins
Name
Class
Date
1.
If a water balloon is 25 meters above the ground, and another is 100 meters above the ground, how much more gravitational potential energy does the higher one have?
a)
10 times as much
b)
4 times as much
c)
2 times as much
d)
It cannot be determined
2.
What would increase kinetic energy the most?
a)
doubling mass
b)
doubling velocity
c)
doubling height
d)
all of these increase kinetic energy the same amount
3.
The graph shows an apple falling. What is its speed at 2 seconds?
a)
4 m/s
b)
8 m/s
c)
12 m/s
d)
20 m/s
4.
The graph shows an apple falling. Is the apple accelerating?
a)
Yes, because its velocity is changing
b)
No, because its speed is constant
c)
Yes, because it starts at 0 m/s
d)
No, because the direction is constant
5.
Cars are safer if they have good traction (friction) with the road. What property of the tire most affects the friction between a car and the road?
a)
mass
b)
velocity
c)
tread
d)
fuel
6.
In which diagram does the object accelerate to the left?
a)
A
b)
B
c)
C
d)
D
7.
In which diagram does the object accelerate up?
a)
A
b)
B
c)
C
d)
D
8.
In which diagram does the object not accelerate?
a)
A & B
b)
A & C
c)
B & C
d)
B & D
9.
Which graphs show positive acceleration?
a)
1 only
b)
2 only
c)
1 & 2
d)
1, 2, & 3
10.
Which graphs show constant velocity?
a)
1 only
b)
2 only
c)
3 only
d)
2 & 3
11.
Unit of work
a)
Newton
b)
Joule
c)
Watt
d)
kg*m/s2
12.
Unit of force
a)
Newton
b)
Joule
c)
Watt
d)
kg*m/s2
13.
Unit of power
a)
Newton
b)
Joule
c)
Watt
d)
kg*m/s2
14.
Work divided by time
a)
Kinetic Energy
b)
Potential Energy
c)
Force
d)
Power
15.
If 320 J of work is done in 8 s, what is the power?
a)
10,240 W
b)
2,560 W
c)
40 W
d)
0.025 W
16.
Product of mass and velocity
a)
Work
b)
Force
c)
Momentum
d)
Inertia
17.
If you have a small car and a large car both traveling with the same velocity, which one has more momentum, and why?
a)
Large car, because it has more mass
b)
Small car, because it has less mass
c)
Large car, because it has more potential energy
d)
Small car, because it has more potential energy
18.
Energy in motion
a)
Kinetic Energy
b)
Potential Energy
c)
Mechanical Energy
d)
Positional Energy
19.
Stored energy
a)
Kinetic Energy
b)
Potential Energy
c)
Mechanical Energy
d)
Positional Energy
20.
Riding a bike down a hill is an example of what energy transformation?
a)
kinetic into potential
b)
potential into kinetic
c)
thermal into kinetic
d)
mechanical into potential
21.
Power lines carry electricity over long distances, and the current encounters resistance in the wires. Some electrical energy is transformed into
a)
thermal energy
b)
potential energy
c)
radiant energy
d)
sound energy
22.
Distance divided by time
a)
Speed
b)
Acceleration
c)
Momentum
d)
Power
23.
A toy car takes 8.5 seconds to move 178 meters. What is its speed?
a)
1,513 m/s
b)
20.9 m/s
c)
4.35 m/s
d)
0.048 m/s
24.
What is the difference between speed and velocity?
a)
Speed includes direction
b)
Velocity includes direction
c)
Speed includes momentum
d)
Velocity includes momentum
25.
The Law of Conservation of Momentum states that total momentum is
a)
increased during a collision
b)
decreased during a collision
c)
the same before and after a collision
d)
none of these
26.
You are pushing a wagon. How does the amount of force exerted by you on the wagon compare to the force exerted by the wagon on you?
a)
Your force is greater
b)
The wagon's force is greater
c)
The forces are the same
d)
It cannot be determined
27.
The amount of gravity acting on an object affects its
a)
mass
b)
weight
c)
momentum
d)
kinetic energy
28.
What is the main form of energy that runs a toaster?
a)
gravitational potential
b)
stored mechanical
c)
electrical
d)
radiant
29.
What form of energy is released when we eat pizza?
a)
electrical
b)
chemical
c)
thermal
d)
sound
30.
What form of energy is produced by thunder during a storm?
a)
potential
b)
radiant
c)
thermal
d)
sound
31.
What are the energy transformations in the nuclear power plant?
a)
Nuclear fission -> thermal -> mechanical -> electrical
b)
Nuclear fusion -> thermal -> mechanical -> electrical
c)
Nuclear fission -> electrical -> mechanical ->thermal
d)
Nuclear fusion -> electrical -> radiant -> mecanical
32.
Alex throws a ball across the field for a horizontal distance of 25.4 meters. The next day it is very windy and air resistance is a significant factor when throwing the ball into the wind. If he throws with the same force, where would the ball land?
a)
less than 25.4 meters away
b)
more than 25.4 meters away
c)
exactly 25.4 meters away
d)
it cannot be determined
33.
If a ball is rolling down the hall, friction slows it down. This is a(n)
a)
balanced force
b)
unbalanced force
c)
potential force
d)
none of these
34.
You are standing on the sidewalk when a bus drives by going 33 m/s. Someone in the bus rolls a ball from the front of the bus, to the back of the bus at 2 m/s. How fast does it look like the ball is moving to you?
a)
35 m/s
b)
33 m/s
c)
31 m/s
d)
0 m/s
35.
What is mass?
a)
The amount of matter in an object
b)
The force due to gravity on an object
c)
The amount of space an object takes up
d)
The compactness of an object
36.
Do mass and weight depend on location?
a)
Mass does, but weight does not
b)
Mass does not, but weight does
c)
Both mass and weight do
d)
Neither mass nor weight do
37.
What is weight?
a)
The amount of matter in an object
b)
The force due to gravity on an object
c)
The amount of space an object takes up
d)
The compactness of an object
38.
What is the SI unit for weight?
a)
g
b)
kg
c)
lb
d)
N
39.
What is the SI unit for mass?
a)
g
b)
kg
c)
lb
d)
N
40.
Is there gravity in space?
a)
Yes, gravity is everywhere
b)
No, gravity is only near planets
c)
Yes, gravity is the strongest force in the universe
d)
No, that's why astronauts feel weightless in orbit
41.
What does positive acceleration look like in a graph of distance vs. time?
a)
Straight line sloping up
b)
Straight line sloping down
c)
Line curving up
d)
Line curving down
42.
Newton’s First Law of Motion states that an object in motion, stays in motion unless
a)
acted on by a balanced force
b)
acted on by an unbalanced force
c)
acted on by an action force
d)
acted on by a reaction force
43.
Which has greater gravitational potential energy, a book on a table or on the roof?
a)
On the table, because of its inertia
b)
On the roof, because of its inertia
c)
On the table, because of its position
d)
On the roof, because of its position
44.
Product of force and distance
a)
Work
b)
Power
c)
Kinetic Energy
d)
Potential Energy
45.
Of the four basic forces in the universe, which is the weakest?
a)
weak nuclear force
b)
strong nuclear force
c)
electromagnetic force
d)
gravity
46.
Inertia depends on
a)
mass only
b)
mass and velocity
c)
weight and speed
d)
velocity only
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