Energy Systems Quiz

What is the formula to calculate the kinetic energy (KE) of an object?

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

If a ball with a mass of 2 kg is moving at a velocity of 3 m/s, what is its kinetic energy?

• 9 J

• 18 J

• 6 J

• 12 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

What is the formula to calculate the gravitational potential energy (PE) of an object?

Tags

NGSS.MS-PS3-2

• 49 J

• 98 J

• 9.8 J

• 196 J

Tags

NGSS.MS-PS3-2

Which of the following is an example of an open system?

• A sealed terrarium

• The Earth's atmosphere

• A closed water bottle

• An insulated thermos

Tags

NGSS.MS-LS2-3

Which of the following is an example of a closed system?

• An ocean

• A car engine

• A boiling pot of water with a lid on

• A forest

• 490 J

• 98 J

• 50 J

• 500 J

Tags

NGSS.MS-PS3-2

A roller coaster at the top of a hill has a potential energy of 2000 J. What happens to this energy as it starts descending the hill?

• It is converted into kinetic energy

• It disappears

• It remains constant

• It is converted into thermal energy

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the kinetic energy of a 50 kg object moving at a speed of 10 m/s?

• 2500 J

• 5000 J

• 1000 J

• 500 J

Tags

NGSS.MS-PS3-1

Which of the following scenarios describes a closed system?

• A plant growing in a garden

• A cup of coffee cooling down on a table

• A refrigerator with its door closed

• Water evaporating from a pond

Tags

NGSS.MS-PS3-4