Energy Transfer Quiz

A scientist performed an experiment during which she measured the energy transferred in each step of her experiment. The total quantity of energy transferred in all of the steps was less than the amount she measured at the beginning. What is the most likely explanation for this result?

• Energy was destroyed during certain steps in the experiment.

• The steps in the experiment required more energy than was available.

• The experiments produced energy that was then used up at a faster rate.

• Some energy was transformed into unwanted heat or sound that was not detected.

Tags

NGSS.MS-PS3-4

A hockey player uses her stick to hit a hockey puck. Which statement describes the energy transfer?

• Energy is transferred from the stick to the puck.

• Energy is transferred from the player to the puck.

• Energy is transferred from the puck to the player.

• Energy is transferred from the stick to the player.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A cold block of metal is placed in contact with a warm block of metal. Which type of energy will be transferred between the blocks?

• thermal energy

• chemical energy

• electrical energy

• mechanical energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

What energy transformation takes place when a hair dryer is used?

• Energy from the sun is transformed to chemical energy.

• Sound energy is transformed to thermal energy and electrical energy.

• Electrical energy is transformed to thermal energy and sound energy.

• Electrical energy is transformed to thermal energy, sound energy, and mechanical energy.

Some people use solar water heaters in their homes. A tank is attached on the roof, where the sun warms the water in the tank. Pipes transfer water from the tank to the taps in the home. What energy inputs are needed for this system?

• energy to move cold water into the tank

• energy from the sun to warm the water in the tank

• energy to move cold water into the tank and energy from the sun to warm the water

• energy from the sun to warm the water in the tank and energy to move the warm water from the tank to the taps

Tags

NGSS.MS-PS3-3

While on vacation, Carine rides in a hot-air balloon. To make the balloon rise, the pilot turns on a flame to warm the air inside the balloon. How does the air change?

• The temperature of the air decreases.

• The air particles move closer together.

• The motion of the air particles increases.

• The air changes to a different state of matter.

Tags

NGSS.MS-PS1-4

Which of these is a measure of the average kinetic energy of the molecules of a material?

• heat

• temperature

• thermal energy

• bonding energy

Tags

NGSS.MS-PS3-1

A lizard sits on a hot rock to get warm. What type of thermal energy transfer is occurring?

• conduction

• convection

• radiation

• kinetic

What is thermal energy?

• the total kinetic energy in an object

• the average kinetic energy in an object

• the total transfer of kinetic energy between two objects

• the average transfer of kinetic energy between two objects

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A hot potato at 80 ºC is placed in a bowl of soup at 40 ºC. The surrounding room is at 20 ºC. Which correctly describes the directions of thermal energy transfer?

• potato to soup, and soup to room

• room to soup, and soup to potato

• room to soup, and room to potato

• soup to potato, and potato to room

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4