Energy Review

How is energy transferred when an instant cold pack is put on a muscle injury?

• Heat energy is transferred by conduction from the muscle to the cold pack.

• Heat energy is transferred by convection from the cold pack to the muscle.

• Heat energy is transferred by radiation from the muscle to the cold pack.

• Heat energy is transferred by absorption from cold pack to the muscle.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The diagram shows the movement of heat in a glass pot of water

• boiling

• conduction

• convection

• radiation

Tags

NGSS.MS-PS1-4

The diagram below shows energy being transmitted from the sun to Earth.

• The energy is transferred as thermal radiation and light because no direct contact is needed between the sun and Earth.

• The energy is transferred by conduction because no direct contact is needed between the sun and Earth.

• The energy is transferred as thermal radiation because at times the sun and Earth are in direct contact.

• The energy is transferred by conduction because the sun and Earth are always in direct contact.

A pot is touching the flame of a gas stove. The water in the pot begins to boil as it heats up. Which of the following BEST describes the heat transfer through the bottom of the pot?

• conduction

• convection

• radiation

• vaporization

A hot rock is dropped into a pail of cool water. Heat energy transferred from the rock to the water by

• conduction

• convection

• radiation

• boiling

A pan containing hot water is left on the counter and becomes cool mainly due to

• water molecules moving apart.

• cold air penetrating the hot water.

• heat from the water moving into the cooler air.

• hot water reacting with the metal pan.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Energy from the Sun reaches Earth by

• conduction

• convection

• radiation

• thermal expansion

A chef uses a metal spoon to stir noodles cooking in a pan. After five minutes, she notices that the thermal energy from the pan has made the spoon

• hot

• cold

• wet

• dry

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Jennifer is in a room that has an air temperature of 25ºC (77ºF). Before pouring cold water into a glass, she notices that the ice in the pitcher is melting. What would be the BEST way for Jennifer to describe how thermal energy is being transferred?

• Heat moves from the ice to the water.

• Cold moves from the ice into the water.

• Heat moves from the air into the water.

• Cold moves from the water into the room.

Tags

NGSS.MS-PS1-4

Which of the following is the BEST conductor of heat?

• oven mitt

• metal bowl

• wooden spoon

• rubber soled shoes

Tags

NGSS.MS-PS3-3