Kinetic Energy Problems

A 35kg child has 360J of kinetic energy after sledding down a hill. What is the child's speed in meters per second at the bottom of the hill?

• 20.6 m/s

• 122 m/s

• 4.54 m/s

Tags

NGSS.MS-PS3-1

A diver standing on top of a diving platform that is 20 meters above the pool dives off the platform. Describe the transfer of energy that occurs during the fall.

• Kinetic energy changes to potential energy

• Chemical energy changes to potential energy

• Potential energy changes to kinetic energy

• Potential energy is destroyed. Kinetic energy is created

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

The energy of a pendulum is recorded at different positions in the table below. Use the data in the table to determine the amount of kinetic energy the pendulum had at Position 2.

• 36.55 J

• 63.45 J

• 50 J

• 100 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

A bowling ball traveling 4.0 m/s has 16J of kinetic energy. What is the mass of the bowling ball in kilograms?

• 2kg

• 4kg

• 8kg

Tags

NGSS.HS-PS3-1

Calculate the KE of a moving 4 kilogram object traveling at a velocity of 3 m/s.

• 18 J

• 36 J

• 12 J

• 6 J

Tags

NGSS.HS-PS3-1

Calculate the KE of a runner that has a mass of 80 kg and is running at a velocity of 8 m/s

• 5120 J

• 320 J

• 640 J

• 2560 J

Tags

NGSS.HS-PS3-1

How much kinetic energy does a 7.5 kg bowling ball have it travels at 3 m/s?

• 34.65 J

• 33.75 J

• 67.5 J

• 22.5 J

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

• 45167 J

• 2258.35 J

• 225 J

• 22583.5 J

Tags

NGSS.HS-PS3-1

A ping pong ball has a mass of 0.00245 Kg. Suppose that Forrest Gump hits the ball across the table with a speed of 4.00 m/s. What is the ball’s kinetic energy?

• 0.0196 J

• 0.00196 J

• 0.0196 Kg

• 0.0392 J

Tags

NGSS.MS-PS3-1

The largest land predator is the male polar bear, which has a mass of around 500.00 kg. If the top speed of a male polar bear is 11.0 m/s, how much kinetic energy does it have?

• 3025 J

• 60500 J

• 5500 J

• 30250 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2