Calculating KE and GPE

Calculate the kinetic energy of a running back that has a mass of 80 kg and is running as a velocity of 8 m/s.

• 320 J

• 2650 J

• 2560 J

• 5120 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

What is the GPE of a 0.3 kg apple on top of a 1 m tree?

• 0 J

• 2.94 J

• 0.3 J

• 2.96 J

Tags

NGSS.MS-PS3-2

A 50 kg girl is on a diving board that is 3 m high. What is her kinetic energy at the top of the board?

• 0 J

• 1470 J

• 1740 J

• 150 J

Tags

NGSS.MS-PS3-4

Which of the following affects the gravitational potential energy of an object?

• The mass of the object

• The height of the object

• The velocity of the object

• Both the mass and height of the object

Tags

NGSS.MS-PS3-2

What is the value for g (gravity)?

• 99.8 m/s

• 8.9 m/s

• 9.8 m/s

• 9 m/s

Tags

NGSS.MS-ESS1-2

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs? (KE = 1/2mv²)

• 8.5 J

• 45 J

• 7.5 J

• 22.5 J

Tags

NGSS.MS-PS3-1

Alice kicks a soccer ball with a mass of 2.1 kg. The ball leaves the ground moving 30 meters per second. What is the kinetic energy of the soccer ball?

• 567 J

• 900 J

• 945 J

• 30 J

Tags

NGSS.MS-PS3-1

What is the equation for calculating gravitational potential energy

• mv

• 1/2 mv^2

• mgh

• Ft

Tags

NGSS.MS-PS3-2

What is the equation for calculating kinetic energy?

• mv

• 1/2 mv^2

• mgh

• Ft

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A 10 kg object is moving at a speed of 5 m/s. What is its kinetic energy?

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5