Energy

A girl on a motorbike passes by at a speed of 15 m/s. Her mass is 40 kg. What is her kinetic energy? 

• 300 Joules
• 600 Joules
• 950 Joules
• 4500 Joules

Tags

NGSS.MS-PS3-1

Calculate the potential energy of a roller coaster at the top of a 72 m hill that has a mass of 112 kg.

• 79,027 J
• 790,720 J
• 7,020 J
• 790,700 J

Tags

NGSS.HS-PS3-1

At what position does the pendulum have the greatest gravitational potential energy?

• Position D
• Position C
• Position B

Tags

NGSS.MS-PS3-2

At what position does the pendulum have the greatest kinetic energy?

• Position D
• Position C
• Position B

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which character has the greatest gravitational potential energy?

• Character A
• Character B
• Character C
• Character D

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

Which skier has the greatest kinetic energy?

• Skier A
• Skier B
• Skier C
• Skier D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Calculate the kinetic energy of a 2 kg rock that rolls down the hill with a velocity of 8 m/s.

• 64 Joules
• 16 Joules
• 128 Joules
• 8 Joules

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.

• 4,386,250 J
• 159,500 J
• 79,750 J
• 8,772,500

Tags

NGSS.MS-PS3-1

Barry Bonds swings a bat which has a mass of 1.5 kg at a velocity of 55 m/s. How many joules of kinetic energy could he give to a baseball?

• 2269 Joules
• 83 Joules
• 41 Joules
• 4 Joules

Tags

NGSS.MS-PS3-1

Calculate the kinetic energy of a car which has a mass of 1000 kg and is moving at the rate of 20 m/s.

• 200,000 Joules
• 20,000 Joules
• 10,000 Joules
• 40,000 Joules

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4