Energy Transformations Quiz

Which of the following describes the energy transformation occurring in a hair dryer?

• Electrical → Chemical → Light

• Electrical → Thermal → Sound

• Mechanical → Sound → Thermal

• Mechanical → Electrical → Sound

Tags

NGSS.MS-PS3-3

The image below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon. What energy transformations occur when propane gas is used to lift the balloon?

• thermal energy → chemical energy → light energy

• mechanical energy → light energy → chemical energy

• chemical energy → mechanical energy → thermal energy

• chemical energy → thermal energy → mechanical energy

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

The image below shows a tea kettle on a gas stove. Which statement describes the energy transformation that occurs when the tea kettle begins to whistle as the water is heated on a stove that uses natural gas?

• The thermal energy in the natural gas is transformed into sound energy when the water becomes hot. Then the sound energy changes into light energy when the kettle becomes warm.

• The chemical energy in the natural gas is transformed into thermal energy which heats the water. Then the thermal energy changes into sound energy when the water forms steam and the steam leaves the kettle.

• The light energy in the natural gas is transformed into chemical energy in the water. Then the chemical energy changes into kinetic energy when steam leaves the kettle and into sound energy when the water boils.

• The electrical energy in the natural gas is transformed into thermal energy which causes the water to form steam. Then the thermal energy changes into sound energy and light energy when the steam leaves the kettle.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Students conducted an investigation using basketballs. They dropped a basketball from a height of 100 centimeters (cm) and it bounced back to a height of 60 centimeters (cm). According to the Law of Conservation of Energy, which of the following statements best describes why the basketball did not bounce back to the original height?

• energy was created as the basketball bounced

• energy was destroyed as the basketball bounced

• energy transferred to the ground when it made contact with the basketball

• energy transferred to the basketball when it made contact with the ground

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which scenario best explains the Law of Conservation of Energy?

• All the energy used to throw a ball is destroyed when it lands.

• When a fish uses all of its energy, it creates more by swimming less.

• Light energy is collected by solar panels and transformed into electrical energy.

• As a toy car starts to slow down until all of its energy is transferred into the ground.

Tags

NGSS.MS-PS3-5

Which of the following statements describes the energy transformations when a cell phone is plugged in and being used to listen to music?

• Electrical → Chemical → Light

• Electrical → Chemical → Sound

• Mechanical → Electrical → Light

• Mechanical → Electrical → Sound

The image below shows a swinging pendulum, Position 1 represents its starting point. Which of the following statements is true about the energy of the pendulum?

• The total amount of energy changes from Position 4 to Position 5.

• The total amount of energy increases from Position 1 to Position 2.

• The total amount of energy decreases from Position 3 to Position 5.

• The total amount of energy stays constant from Position 2 to Position 4.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• chemical → light → electrical
• mechanical → sound → light
• thermal → solar → electrical
• electrical → thermal → light

What type of energy transformation occurs in a battery-powered flashlight?

• Chemical to electrical to light

• Mechanical to electrical to light

• Solar to electrical to light

• Thermal to electrical to light

Which energy transformation occurs in a solar panel?

• Chemical to electrical

• Thermal to electrical

• Solar to electrical

• Mechanical to electrical

Tags

NGSS.HS-PS3-3