Physics Review Work and Energy

The coaster at B is at -

• Maximum PE, Minimum KE

• Minimum PE, Minimum KE

• Minimum PE, Maximum KE

• Maximum PE, Maximum KE

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A spring with a spring constant of 3 N/m is compressed by 4 cm. How much potential energy is stored in the spring?

• 0.0024 J

• 0.024 J

• 2.4 J

• 24 J

Tags

NGSS.MS-PS3-2

A solar power plant converts _____________ to ____________.

• Electrical energy to solar energy

• radiant energy to electrical energy

• chemical energy to electrical energy

• mechanical energy to thermal energy

Tags

NGSS.HS-PS3-3

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

• chemical → light → electrical

• electrical → light → chemical

• light → electrical → chemical

• chemical → electrical → light

Which object has elastic potential energy?

• a hanging leaf

• a burning coal

• a rolling ball

• a stretched bow

Tags

NGSS.MS-PS3-2

A 80.0-kg fireman slides down a 3.00-m pole by applying a frictional force of 400. N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches the ground?

• 2.1 m/s

• 4.2 m/s

• 5.5 m/s

• 8.0 m/s

Tags

NGSS.MS-PS2-2

A 12 kg book is pushed from rest to a final velocity of 10 m/s. The book travels 6 m. How much force was the book pushed with?

• 600 N

• 100 N

• 200 N

• 1200 N

Tags

NGSS.MS-PS2-2

How much gravitational potential energy does a 100kg (220lb.) skydiver have if they jump from 4000 meters?

• 3920000 J

• 294 J

• 180000 J

• 1225 J

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

A frictionless penduluum swings through its full range of motion at the surface of the Earth. At the lowest point of its motion, it is moving with a velocity of 2 m/s. How high above its lowest point will it rise?

• 0.22 m

• 0.38 m

• 0.41 m

• 0.56 m

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

A 5 kg object is lifted to a height of 10 meters. What is the potential energy of the object at this height?

• A) 50 J

• B) 100 J

• C) 500 J

• D) 1000 J

Tags

NGSS.MS-PS3-2