Calculating Potential and Kinetic Energy

Front

An 2 kg apple is hanging in a tree, 3 m off the ground. What is the gravitational potential energy (gravity = 9.8 m/s²) of the apple?

Back

58.8 J

Front

Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.

Back

height and mass

Front

Calculate the potential energy of a 20 kg clock at the top of a 45m high tower. (g=9.8 m/s²)

Back

8820 J

Front

What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?

Back

5,220,411 J

Front

Between a bowling ball and a soccer ball, which one has more kinetic energy and why?

Back

A bowling ball because it has more mass.

Front

A cheetah with a mass of 47 kg runs at a speed of 31 m/s. What is the cheetah’s kinetic energy?

Back

22,583.5 J

Front

A polar bear has an average mass of 500 kg. If its maximum kinetic energy is 60500 J, what is its top speed?

Back

242 m/s

Front

At which point is potential energy greatest? Options: W, X, Y, Z

Back

W

Front

Energy can be _____________ or changed from one type to another.

Back

transferred

Front

A 10 gram ball is rolling at 3 m/s. Calculate its kinetic energy using KE = 1/2 m s².

Back

45 joules