Energy Conversion Review

Which object listed below is NOT experiencing balanced forces

• car moving at a constant speed

• book sitting on the shelf

• boulder sitting on the side of the road

• pencil falling from a desk

Tags

NGSS.MS-PS2-2

When a frog eats an insect and then hops off, which energy conversions are taking place

• chemical to mechanical

• mechanical to chemical

• chemical to electromagnetic

• electromagnetic to chemical

Tags

NGSS.MS-LS1-7

NGSS.MS-PS3-5

At which position on the pendulum would you find the least potential energy?

• 1

• 2

• 3

• 4

Which of the following claims about unbalanced forces is NOT TRUE

• unbalanced forces cause motion

• unbalanced forces can cause an object to slow down

• unbalanced forces can cause an object to change directions

• unbalanced forces can cause an object to not move

Tags

NGSS.MS-PS2-2

A gas light is turning chemical energy into which 2 types of energy listed below?

• electromagnetic and thermal

• electromagnetic and potential

• potential and thermal

• thermal and mechanical

Which object listed below would have the greatest potential energy?

• car in the parking lot

• roller coaster at the top of a hill

• squirrel on the roof of a house

• book on a shelf

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

Which of the following best illustrated potential energy converting to kinetic energy?

• water flowing over a cliff

• rubber band being stretched

• electricity making a light bulb light up

• stone lying on top of a mountain

Tags

NGSS.MS-PS3-2

Students are using the set up for a lab. How could they increase the potential energy of the marble?

• switch the ruler to a wooden one

• push the marble down the ramp

• use a stone instead of a marble

• add more books beneath the ruler

Tags

NGSS.MS-PS3-2

At which of these positions does the ball have the greatest potential energy?

• 2

• 1

• 4

• 3

Tags

NGSS.MS-PS3-2

As a boulder rolls from the top of a hill to the bottom, how does its potential and kinetic energy change?

• Potential and kinetic energy both decrease

• Potential increases and kinetic decreases

• Potential and kinetic energy both increase

• Potential decreases and kinetic increases

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5