Energy Conservation and Transfer

Which of the following will absorb heat energy?

• two sticks being rubbed together

• a piece of wood burning

• steel wool rusting

• ice cubes melting

Tags

6.P.3.1

6.P.3.2

6.P.3.3

Use the diagram to answer the question that follows. Which process is responsible for moving hot air from inside the stove to the outside?

• convection

• reflection

• radiation

• conduction

Use the diagram of a convection current to answer the question that follows. Which arrow represents the hottest air in this convection current?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-6

A pan of soup is being heated on an electric stove. A metal spoon is used to occasionally stir the soup. Which of the following is an example of heat being transferred by convection?

• heating the pan

• heating the soup

• heating the spoon

• heating the stove burner

Which of the following would make the best insulator against the flow of electricity?

• copper wire

• steel tubing

• plastic tape

• aluminum foil

Which of the following statements about thermal energy is true?

• As you hold a cup of hot water your hands cool the water.

• As you hold a glass of cold milk, the cold travels to your hand.

• As you hold a cup of cold milk, your hand cools the milk.

• As you hold a cup of hot water, the heat moves to your hand.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which material is the best conductor of heat at room temperature?

• air

• water

• sulfur

• copper

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Hot objects begin to cool as

• cooler air is transferred to the object.

• energy in the object is transferred to the surrounding air.

• atoms in the object react with the oxygen in the air.

• energy in the object cancel out energy in the air.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a black brick is placed in direct sunlight, its temperature rises. This rise in temperature best demonstrates which of the following?

• The weight of the brick increases over time.

• The Sun exerts a magnetic force on the brick.

• Energy from the Sun is transferred by waves to the brick.

• Mass from the Sun is transferred to the brick as heat.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In 2001, NASA launched a probe to investigate very low-energy radiation emitted when the universe began. What part of the electromagnetic spectrum does this probe observe and record?

• infrared

• microwave

• ultraviolet

• visible

Tags

NGSS.HS-PS4-3