GPE

Maizey's book has a mass of 2.7kg. It is on a shelf that is 2.4m above the ground. The gravitational field strength is 10N/kg. Calculate the gravitational potential energy:

• 64.7 J

• 64.8 J

• 64.9 J

• 65.0 J

Tags

NGSS.MS-PS3-2

Any form of energy is always measured in.....

• kilograms

• metres per second

• Joules

• metres

What is the equation to work out mass from gravitational potential energy?

• mass x gravitational field strength x height

• Energy x gravitational field strength x height

• gravitational field strength x height

• Energy / (height x gravitational field strength)

Tags

NGSS.MS-PS3-2

A ball has the gravitational potential energy of 100 J. It is at the height of 2m. The gravitational field strength is 10 N/kg. What is the mass of the ball?

• 5 kg

• 10 kg

• 20 kg

• 15 kg

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

A rock has the gravitational potential energy of 60 J. It is at the height of 3m. The gravitational field strength is 10 N/kg. What is the mass of the rock?

• 3 kg

• 2 kg

• 4 kg

• 6 kg

What is the equation to work out height from gravitational potential energy?

• mass x gravitational field strength x height

• Energy x gravitational field strength x mass

• gravitational field strength x mass

• Energy / (mass x gravitational field strength)

Tags

NGSS.MS-PS3-2

A 40 kg boy is standing on top of a cliff. His gravitational potential energy is 20,000 J and the gravtiational field strength is 10 N/kg. Calculate the height of the cliff.

• 10 m

• 25 m

• 50 m

• 100 m

A 5 kg object is lifted to a height of 10 m. The gravitational field strength is 9.8 N/kg. Calculate the gravitational potential energy (GPE).

• 490 J

• 500 J

• 510 J

• 520 J

Tags

NGSS.MS-PS3-2

Which of the following is the correct formula for calculating gravitational potential energy (GPE)?

Tags

NGSS.MS-PS3-2

A book with a mass of 1.5 kg is placed on a shelf 2 m above the ground. If the gravitational field strength is 9.8 N/kg, what is the GPE of the book?

• 29.4 J

• 30.0 J

• 31.4 J

• 32.0 J

Tags

NGSS.MS-PS3-2