Force and Motion

Arnold releases a marble at the top of a ramp.

What pulls the marble toward the bottom of the ramp?

• electricity

• friction

• magnetism

• gravity

Tags

NGSS.MS-PS2-4

The gravitational force of the Sun is strong enough to hold all the planets of the solar system in orbit many millions of miles away. Which BEST describes why objects having far less mass on the surface of these planets are not pulled off and into the Sun?

• The objects have too little mass to be affected by the Sun.

• The objects have more mass on the planets than on the Sun

• The objects are held by the greater combined gravity of all the planets

• The objects are more strongly affected by the gravity of the planet on which they are found.

Tags

NGSS.MS-PS2-4

Apples hanging from tree branches eventually fall to the ground.

Which force MOST likely causes the apples to fall to the ground?

• gravity

• collision

• friction

• magnetism

Tags

NGSS.MS-PS2-4

Martin needs to push a box up a ramp.

Which forces will Martin work against MOST when he pushes the box up the ramp?

• friction and gravity

• inertia and magnetism

• magnetism and friction

• gravity and momentum

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which is the BEST explanation of why the Moon revolves around Earth?

• The Moon has a thinner atmosphere than Earth

• The Moon is too large to move away from Earth.

• The Moon is attracted by the gravity of Earth.

• The Moon has a smaller gravitational force than Earth

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Juan and Angela roll toy cars on a sidewalk.

What make the cars finally come to a stop?

• electricity

• friction

• magnetism

• inertia

Tags

NGSS.3-PS2-1

A group of students are investigating motion using a toy car, a ramp, and a milk carton. The students place an empty milk carton at the bottom of a ramp.

Which diagram shows where on the ramp the students should release the car to push the milk carton the farthest?

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Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

A weight, suspended from a pole, is held in place as shown.

When the weight is released, it moves in the direction shown. Which of these would cause the weight to move in this direction?

• electric force

• magnetic force

• gravity

• friction

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Otto pushed a toy car across a floor. The car traveled fast across the wood, but it slowed to a stop on the carpet. Which BEST explains what happened when the car reached the carpet?

• Inertia decreased

• gravity increased

• friction increased

• magnetism decreased

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

Movers slide a box down the ramp of a truck.

What helps slow the box as it slides to the bottom of the ramp?

• friction

• gravity

• inertia

• magnetism

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1