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WorksheetsConceptual Physics Semester 1 Review
Total questions: 55
Worksheet time: 35mins
Which statement supports the law of conservation of energy?
Energy can be created
Energy can be destroyed
Energy is made of matter
Energy can be converted from one form to another
What type of energy conversion occurs when the rubber band it released?
elastic potential to kinetic
gravitational to elastic
elastic potential to chemical
elastic potential to thermal
What type of energy does the roller coaster car have at position (a)?
All potential energy
All kinetic energy
50% potential and 50% kinetic
It has no energy
What type of energy does the roller coaster car have at position (b)?
All potential energy
All kinetic energy
50% potential and 50% kinetic
It has no energy
What type of energy does the roller coaster car have at position (c)?
All potential energy
All kinetic energy
50% potential and 50% kinetic
It has no energy
Kinetic energy can be described as
energy of motion
stored energy
a chemical reaction
connected energy
Which is the best example of an object with only potential energy?
water being poured out of a pitcher
a ball being thrown across a field
a boulder resting on top of a cliff
a boat sailing through the water
The illustration shows a roller coaster and indicates four different positions the car might be at as it moves along the track.
At which point in the roller coaster's journey is its potential energy the greatest?
W
X
Y
Z
Which variables affect kinetic energy?
pressure and volume
velocity and mass
weight and height
temperature and weight
Energy is measured in
Kilograms
Joules
Liters
Centimeters
What is energy?
what I have after a Monster drink
what 6th graders have in abundance
the ability to do work
none of the above
A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
Balanced Forces, Constant Speed
Balanced Forces, Acceleration
Unbalanced Forces, Constant Speed
Unbalanced Forces, Acceleration
What is the net force?
400 N Up at an increasing speed
400 N Down at an increasing speed
400 N Down at a constant speed
800 N Down at a constant speed
Which of Newton's laws states that the acceleration of an object depends on the force exerted on it and its mass?
1st Law
2nd Law
3rd Law
Which of Newton's laws states that for every action there is an equal and opposite reaction?
1st Law
2nd Law
3rd Law
Which of Newton's laws states that an object at rest stays at rest and an object in motion stays in motion unless an unbalanced force acts on it?
1st Law
2nd Law
3rd Law
Which activity would BEST demonstrate Newton's law of Inertia?
A plate sits on a table top.
A lady pushes a grocery cart.
A child jumps on a trampoline.
A boy swings a baseball bat.
When there is an INCREASE in MASS of an object you will have a DECREASE in ______________.
friction
acceleration
force
gravity
Mary is riding in a car when the driver suddenly slams on the brakes. Mary is jerked forward out of her seat. This is an example of which law of motion?
2nd Law
1st Law
3rd Law
Beth's bike remains stopped at the intersection until she begins pedaling again. Which law is this an example of?
1st Law
2nd Law
3rd Law
Chris runs 5 laps around his school. Each lap is 1 mile. What are his distance and displacement?
both distance and displacement are 5 miles
distance is 5 miles; displacement is 0 m
displacement is 5 miles; distance is 0 m
both distance and displacement are 5 miles
Which of the following is a possible unit for speed? Select all that apply.
meters
meters per second
meters per second squared
miles per hour
What happens to the speed of an object as it falls downward under the force of gravity?
speed increases
speed decreases
speed remains constant
speed increases, then decreases
An object travels 6 meters south during the first second of travel, 6 meters south during the next second of travel, and 6 meters south during the third second of travel. Its acceleration is ____________.
6 m/s2
18 m/s2
0 m/s2
0 m/s
Suppose a car is moving in a straight line and steadily increases its speed. It moves from 40 km/h to 50 km/h during the first second, and from 50 km/h to 60 km/h the next second. What is the car's acceleration?
60 km/h*s
40 km/h*s
20 km/h*s
10 km/h*s
Suppose you take a trip that covers 180 km in 3 hours. What is your average speed?
30km/hr
360km/hr
180 km/hr
60km/hr
What is the acceleration of an object traveling at a constant velocity?
decreasing
increasing
constant
zero
meters per second (m/s) is a unit of _________. Choose all that apply.
speed
distance
acceleration
velocity
How much work is done when carrying a 2 kg tray 5 m across a room?
10 J
100 J
0 J
2.5 J
The rate at which work is done is:
Energy
Work
Power
Pressure
A 76 kg skydiver is falling at terminal velocity. How much air resistance does he encounter?
76 kg
760 N
0 N
20 N
During free fall, what is the direction of the velocity and acceleration of the object (ignore air resistance)?
velocity is downward; acceleration is downward
velocity is downward; acceleration is upward
velocity is upward; acceleration is downward
velocity is upwards; acceleration is upward
What is the weight of a person whose mass is 85 kg?
85 N
8.5 N
0.85 N
850 N
What is the mass of a box that weighs 220 N?
22 kg
2200 kg
2.2 kg
22 N
If the potential energy at (a) is 100 J, and the potential energy at (d) is 60 J, what is the kinetic energy at (d)?
0 J
60 J
40 J
100 J
As you step out of the door, you bump into your friend with an average force of 12 N for 0.25 seconds. What is the impulse on your friend?
3 N.s
48 N.s
11.75 N.s
0 N.s
As you step out of the door, you bump into your friend with an average force of 12 N for 0.25 seconds. What is your friend's change of momentum?
3 kg m/s
48 kg m/s
11.75 kg m/s
0 kg m/s
As you step out of the door, you bump into your friend with an average force of 12 N for 0.25 seconds. If your mass is 60 kg, what is your change in velocity?
0.05 m/s
180 m/s
5 m/s
18 m/s
You're pushing a 20 kg box with a force of 40 N rightward. What is the acceleration of the box assuming no force of friction.
800 m/s2
2 m/s2
0.5 m/s2
0.2 m/s2
You're pushing a 20 kg box with a rightward force of 30 N. If the friction force is 10 N, what is the acceleration of the box?
0 m/s2
2 m/s2 rightward
2 m/s2 leftward
1 m/s2 rightward
