SSA Review (Energy Transformations: Big Idea 11)

Emma constructed a simple motor. When connected correctly, the coil of copper wire spins. Which of the following best describes the energy transformation that takes place between the paper clips and the spinning coil?

• Chemical energy transforms into electrical energy.

• Mechanical energy transforms into chemical energy.

• Mechanical energy transforms into electrical energy.

• Electrical energy transforms into mechanical energy.

Mrs. Aldaco added a room-temperature copper (Cu) cube and an aluminum (Al) cube that she just removed from the freezer to a beaker of boiling water. She left the cubes in the water for three hours. Which of the following describes a heat flow that took place during those three hours?

• from the aluminum cube to the beaker

• from the copper cube to the boiling water

• from the aluminum cube to the copper cube

• from the boiling water to the aluminum cube

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The transfer of heat can cause changes in rock. Which of the following describes the role heat plays at a specific point in the first diagram?

• At point 1, removing heat causes melting.

• At point 2, removing heat causes solidifying.

• At point 3, adding heat causes solidifying.

• At point 4, adding heat causes melting.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-PS1-4

According to the law of conservation of energy, which of these will happen?

• Some chemical energy will be destroyed, and some will be changed into light and heat.

• The amount of chemical energy used will equal the amount of energy given off as light and heat.

• The amount of chemical energy used will be less than the amount of energy given off as light and heat.

• The amount of chemical energy used will be greater than the amount of energy given off as light and heat.

Tags

NGSS.HS-PS1-4

Two objects at different temperatures are arranged as shown in the diagram. If the objects are left in contact with each other, which of the following describes what will occur?

• Heat will flow from object X to object Y until object Y is warmer than object X.

• Heat will flow from object Y to object X until object Xis cooler than object Y.

• Heat will flow from object Y to object X until both are the same temperature.

• Heat will flow from object X to object Y until both are the same temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

When a hot plate is plugged in and turned on, it can be used to cook food. Which of the following best describes the energy transformation that takes place in a hot plate?

• Chemical energy is transformed into thermal energy.

• Electrical energy is transformed into thermal energy.

• Thermal energy is transformed into mechanical energy.

• Electrical energy is transformed into mechanical energy.

Tags

NGSS.MS-PS3-4

Mr. James poured the same amount of water, but at different temperatures, into the two beakers shown below. He placed the two beakers in a room with an air temperature of 20°C. He left the beakers in the room for two hours.

Which of the following describes a direct flow of heat that took place during those two hours?

• from Beaker A to the air

• from the air to Beaker A

• from the air to Beaker B

• from Beaker B to Beaker A

Tags

NGSS.MS-PS1-4

The diagram show- a simple generator connected to a light bulb. Turning the wire coil between the poles of the magnet causes a current to flow to the bulb.

Which of the following best describes the energy transformations that take place in the system shown?

• chemical energy to magnetic energy to thermal energy

• electrical energy to mechanical energy to thermal energy

• magnetic energy to electrical energy to electromagnetic energy

• mechanical energy to electrical energy to electromagnetic energy

When gasoline is used to run a motorcycle, the motorcycle's engine makes a noise, the headlights light up, and the wheels turn. Which of the following is an example

of potential energy?

• the energy given off by the headlights

• the energy given off by the engine

• the energy stored in the gasoline

• the energy of the turning wheels

Tags

NGSS.MS-PS3-2

The drawing shows the cars of a roller coaster racing down the track. How does the Law of Conservation of Energy best explain the energy of the cars on the track?

• The kinetic energy of the cars is being transformed into potential energy.

• The cars have potential energy, but no kinetic energy.

• The potential energy of the cars is being transformed into kinetic energy.

• The cars have kinetic energy, but no potential energy.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5