Energy Conversions and Heat

Work is the transfer of

• force

• mass

• energy

• motion

A small 10 kg canoe is floating downriver at a speed of 3 m/s. What is the canoe's KE?

• 45

• 13

• 90 J

• 3.3 J

Tags

NGSS.HS-PS3-2

Which of the following is an example of an object with elastic potential energy

• a compressed basketball

• a stretched rubber band

• a wind-up toy that has been wound up

• all of the above

Tags

NGSS.HS-PS3-2

Which of the following increases when an object becomes warmer?

• nuclear energy

• chemical energy

• elastic potential energy

• thermal energy

Tags

NGSS.HS-PS3-4

The total PE and KE of all the microscopic particles in an object make up its

• mechanical energy

• chemical energy

• thermal energy

• electric energy

Fossil fuels currently account for the majority of the world's energy use because they are

• renewable energy resources

• relatively inexpensive and readily available

• nonpolluting

• distributed evenly throughout the world

Tags

NGSS.HS-ESS3-2

The equation E=mc² relates energy and

• work

• mass

• gravity

• force

The energy stored in gasoline is

• chemical energy

• nuclear energy

• elastic potential energy

• thermal energy

Tags

NGSS.HS-PS1-4

A 3 kg cat is resting on a bookshelf 2 m high. What is the cat's GPE?

• 14.8 J

• 6 J

• 58.8 J

• 24 J

Tags

NGSS.MS-PS3-2

An object's GPE is NOT directly related to which of the following?

• speed

• acceleration due to gravity

• height relative to a reference level

• mass