MP2 9weeks Review

The picture shows a bicyclist increasing speed while riding down a hill during a bicycle race. Which statements accurately describe the potential and kinetic energy of this bicyclist?

• Kinetic energy increases. Potential energy decreases.

• Kinetic energy increases. Potential remains the same.

• Kinetic energy remains constant. Potential energy increases.

• Kinetic energy remains constant. Potential energy decreases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Rollercoasters are popular attractions at amusement parks. A cart on a roller coaster approaches the highest point on the coaster. As the cart reaches the top, it slows down. Which statement best describes the energy of the roller coaster as it slows down while traveling to the top of the coaster?

• The cart gains both kinetic and potential energy.

• The cart gains kinetic energy and loses potential energy.

• The cart loses kinetic energy and gains potential energy.

• The cart loses both kinetic and potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Joni throws a tennis ball very hard against a solid wall. What happens after the ball hits the wall?

• The ball loses all its energy and sticks to the wall.

• The ball loses all its energy and falls straight down to the floor.

• The energy of the moving ball pushes it away from the wall.

• The energy of the moving ball pushes it toward the wall

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A large boat is moving in the water. The boat bumps into a small piece of floating wood. What happens to the motions of boat and the wood?

• The motions of the boat and the wood do not change.

• There is a small change to the motion of the boat and no change to the motion of the wood.

• There is a large change to the motion of the boat and a large change to the motion of the wood.

• There is a small change to the motion of the boat and a large change to the motion of the wood.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-5

The diagram shows how a cylinder in a car engine causes the car to move. Which description of the energy conversions in this process is correct?

• The chemical energy in the fuel-air mixture is converted to thermal energy, which is then converted to mechanical energy.

• The electrical energy in the fuel-air mixture is converted to mechanical energy, which is then converted to thermal energy.

• The mechanical energy in the fuel-air mixture is converted to electrical energy, which is then converted to thermal energy.

• The thermal energy in the fuel-air mixture is converted to electrical energy, which is then converted to mechanical energy.

Tags

NGSS.MS-PS3-5

Students build a circuit. The circuit has wires that connect a battery to a switch and a fan. Which energy transformations happen when the students close the circuit, and the blades of the fan begin to spin?

• Chemical to mechanical to electrical

• Electrical to chemical to mechanical

• Chemical to electrical to mechanical

• Mechanical to electrical to chemical

Tags

NGSS.MS-PS3-5

Select the words from the menu that correctly complete the statement. Sound waves transfer energy through air by collisions among air particles that transfer ______ from one place to another. The motion of the individual particles is ____ to the motion of the wave.

• molecules

• energy

• perpendicular

• parallel

Tags

NGSS.MS-PS3-5

NGSS.MS-PS4-1

This illustration shows a sound wave traveling from a tuning fork through a medium. What parts of the wave are labeled X and Y?

• X represents the compressions; Y represents the rarefactions.

• X represents the compressions; Y represents the wavelength.

• X represents the rarefactions; Y represents the compressions.

• X represents the rarefactions; Y represents the wavelength.

Tags

NGSS.MS-PS4-1

The diagram models four lunar phases. During which lunar phase is the tide highest?

• Phase 1

• Phase 2

• Phase 3

• Phase 4

Tags

NGSS.MS-ESS1-1

The model shows Earth in four different positions in its orbit around the sun. Which statement correctly explains which position of Earth represents summer in the United States?

• Position 1, because the Western Hemisphere is facing the sun

• Position 2, because the Northern Hemisphere tilts toward the

  sun

• Position 3, because Earth is at its closest point to the sun in its

  orbit

• Position 4, because Earth is traveling at its fastest rate in its

  orbit

Tags

NGSS.MS-ESS1-1