No student devices needed. Know more
22 questions
Wile E. Coyote eats a healthy breakfast before running after the Roadrunner. What is the energy transformation?
Chemical potential to kinetic
Kinetic to gravitational potential
Elastic to kinetic
Chemical potential to thermal
A ball rolls to the top of a frictionless hill. What is the energy transformation?
gravitational potential to kinetic
kinetic to thermal
kinetic to gravitational potential
chemical potential to kinetic
A child is at the top of a smooth slide and then slides down. At the bottom, the child comes to a stop when they reach the grass. What is the energy transformation?
elastic potential to kinetic to gravitational potential
gravitational potential to kinetic to elastic potential
kinetic to gravitational potential to kinetic
gravitational potential to kinetic to thermal
A rock falls off a table and lands on a spring, squishing it. What is the energy transformation?
gravitational potential to kinetic to gravitation potential
kinetic to elastic potential to gravitational potential
gravitational potential to kinetic to elastic potential
chemical to thermal
A 3.0 kg ball is on a table 1.5 m above the ground. What is its gravitational potential energy?
4.5 J
44.1 J
3.4 J
29.4 J
What is the kinetic energy of a 12 kg dog running at 3 m/s?
36 J
353 J
54 J
118 J
How much work is needed to push a resting 20 kg crate to a velocity of 5 m/s?
15 J
250 J
300 J
100 J
50 J of work is done lifting a 2.0 kg book in the air. How high was it lifted?
2.6 m
3.6 m
1.0 m
25 m
How much energy is used by a 100 W light bulb over 1 hour? (be sure to convert to seconds first)
100 J
36,000 J
360,000 J
240,000 J
A bike goes from 0 m/s to 12 m/s in a time of 4 seconds. What was its acceleration?
12 m/s/s
4 m/s/s
3 m/s/s
0.33 m/s/s
A car goes from 0 m/s to 8 m/s in a distance of 100 m. What is the car's acceleration?
0.32 m/s/s
0.64 m/s/s
12.5 m/s/s
0.08 m/s/s
Bobby lifts a book to the second floor in 20 seconds. Carol lifts the same book to the second floor in 10 seconds. Who did more work?
Bobby
Carol
They did the same amount of work
Not enough information
Bobby lifts a book to the second floor in 20 seconds. Carol lifts the same book to the second floor in 10 seconds. Who used more power?
Bobby
Carol
They did the same amount of work
Not enough information
A 0.300 kg orange falls off a 1.2 m high table. How much kinetic energy does the orange have when it reaches the ground?
3.5 J
0.22 J
0.40 J
4.6 J
A pendulum has 10 J of gravitational potential energy at its highest point. How much kinetic energy does it have at its lowest point?
0 J
2 J
5 J
10 J
At one point, a falling apple has 2 J of gravitational potential energy and 7 J of kinetic energy. How much kinetic energy does it have when it hits the ground?
2 J
7 J
9 J
5 J
A 4 kg ball is at rest on a 2.5 m high shelf. The ball falls off the shelf. How fast is the ball moving when it hits the ground?
49 m/s
7 m/s
12 m/s
9.8 m/s
A solar panel is connected to a lamp. Does the panel do positive or negative work on the lamp?
positive
negative
not enough information
A horse pulls a cart from rest to 3 m/s. Does the horse do positive or negative work on the cart?
positive
negative
not enough information
A box slides from 12 m/s to 6 m/s across a carpet. Does the carpet do positive or negative work on the box?
positive
negative
not enough information
A 25 kg cart in moving at 15 m/s when it hits a rough road and then slides to a stop in 30 m. What is the acceleration of the cart?
3.75 m/s/s
-3.75 m/s/s
5.2 m/s/s
-5.2 m/s/s
What is the unit for energy?
joule
newton
watt
m/s/s
Explore all questions with a free account