Week 2 SSA PreTest

15. 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 electrical energy.

• Electrical energy transforms into mechanical energy

• Mechanical energy transforms into chemical energy.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

16. A television is a device that converts electrical energy into light and sound energy. Not all the energy that enters a television is converted into light and sound, however. What happens to the energy that enters a television but is not converted into light or sound?

• The energy returns to the electrical socket.

• The energy is stored in the wires in the television

• The energy is lost as heat

• The energy is destroyed in the conversion process

Tags

NGSS.MS-PS3-3

18. A group of students are eating in

the cafeteria. As they eat, the students break down the molecules in the food, which releases energy. Which form of energy is stored in the food?

• chemical energy

• elastic energy

• nuclear energy

• thermal energy

Tags

NGSS.MS-LS1-7

20. There is a good deal of stored energy in gasoline, which makes it useful as fuel for cars. When gasoline is burned in a car engine, what happens to this energy?

• It is destroyed as it is used to make the engine in the car run.

• Some of it is transformed into kinetic energy and some into

  potential energy.

• Some of it makes the car run, but most of it disappears before being transformed.

• It is transformed into kinetic energy, sound energy, and heat energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What happens when a solid melts?

• Its molecules move farther apart.

• Its molecules move closer together

• The speed of its molecules decreases

• The temperature decreases although heat is added

Tags

NGSS.MS-PS1-4

Some ice cubes are added to a pot of boiling water. After a few moments, the water stops boiling.

Which of the following explains why the water stopped boiling?

• Heat energy from the water melted the ice.

• Particles from the boiling water moved into the ice and melted the ice.

• Cold energy from the ice transferred into the water, lowering the temperature of the water

• Cold energy leaving the ice caused it to melt

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

If you hold a glass of ice tea on a summer’s day, which of the following will happen?

• Cold will travel from the glass to your hand

• The temperature of your tea will decrease

• The temperature of your hand will increase

• Heat will travel from your hand to the glass

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Beth takes a sip of very hot soup and decides to put an ice cube in her bowl. Which best describes what happens next?

• The cold from the ice evaporates in the air

• Heat is destroyed as the ice melts.

• Heat from the soup flows into the ice cube.

• Cold from the ice cube flows into the soup

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A light wave from the sun shines through the atmosphere, into the window of a house, and through a plastic fish tank. In which of the following mediums would the light waves travel the fastest?

• The air in the atmosphere

• The glass in the window

• The water in the fish tank

• The plastic fish tank

Tags

NGSS.MS-PS4-2

Sound waves need to travel through something made of atoms or molecules to keep moving. They travel at different speeds through different materials. Through which of the following would they be likely to travel fastest?

• Air

• Water

• Juice

• Wood

Tags

NGSS.MS-PS4-2