Energy Transfer

Front

A plastic bottle filled with warm air is placed into cold water. The temperature of the air ________.

Back

gets colder

Front

A plastic bottle filled with warm air is placed into cold water. The temperature of the water ____________.

Back

gets warmer

Front

Energy transfer between air particles and water particles when a warm air-filled plastic bottle is placed in cold water.

Back

warm air to cold water through the plastic

Front

True or False:  Energy flows from cold milk when it is poured into hot chocolate

Back

False

Front

True or False:  Energy flows from hot chocolate when cold milk is poured into it.

Back

True

Front

True or False:  The kinetic energy of cold milk increases when it is poured into hot chocolate.

Back

True

Front

True or False:  The kinetic energy of hot chocolate increases when cold milk is poured into it.

Back

False

Front

Which particle has more kinetic energy before the collision: a fast moving particle (A) or a slow moving particle (B)?

Back

Particle A

Front

A fast moving particle (A) and a slow moving particle (B) collide. What happens to the kinetic energy when the particles collide?

Back

Energy transfers to particle B

Front

A fast moving particle (A) and a slow moving particle (B) collide. What happens to the speed of each particle after collision?

Back

they move at the same speed