Find Gpe

There is a bell at the top of a tower that is 45 m high. The bell weighs 100 kg. What is the potential energy of the bell?

• 980 J
• 441 J
• 4,500 J
• 44,100 J

Tags

NGSS.MS-PS3-2

An 2 kg apple is hanging in a tree, 10 ft off the ground. What is the gravitational potential energy of the apple?

• 19.6 J
• 20 J
• 98 J
• 196 J 

Tags

NGSS.MS-PS3-2

The acceleration of an object due to gravity on Earth is...

• 8.9 m/s²
• 9.8 m/s²
• It depends on the mass of an object
• Equal to its kinetic energy

Tags

NGSS.MS-PS2-4

Which of the following has the greatest amount of gravitational potential energy?

• A 20 kg projector suspended 10 m in the air
• A 100 kg wrecking ball suspended 10 m in the air
• A 5 kg basketball suspended 10 m in the air
• They all have the same GPE because they are all 10 m in the air

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

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 unit do we use to measure energy?

• kg

• m/s

• N

• J

There is a clock at the top of a tower that is 45m high. The clock weighs 20 kg. Calculate its potential energy. Remember g=9.8 m/s

• 8100 J

• 9.8 m/s

• 900 J

• 8820 J

Tags

NGSS.MS-PS3-2

What is the ME of a baseball falling from the sky that has a KE of 100J and PE of 1000J?

• 1100 J

• 900 J

• 1000 J

• 0 J

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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

What is the ME of a 62 kg boulder sitting on top of a 50 m cliff before it falls off?

*Remember g = 9.8 m/s²

• 30,380 J

• 30,000 J

• 3,100 J

• 300,000 J

Tags

NGSS.MS-PS3-2