Forces and motion

A_______ is a push or pull on a specific object.

• motion

• force

• friction

• gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

_________ is a force that can slow objects down as they rub together.

• friction

• balanced force

• unbalanced force

• gravity

Friction is different between different materials.

• true

• false

Tags

NGSS.MS-PS2-2

A force that attracts things to Earth.

• gravity

• force

• friction

• motion

Tags

NGSS.5-PS2-1

What force would I observe if I dropped my phone on the floor?

• push

• pull

• gravity

• lift

Tags

NGSS.MS-PS2-4

The same strength but act in opposite directions, so there is no change in motion.

• balanced forces

• unbalanced forces

• net forces

• army forves

Tags

NGSS.MS-PS2-2

When one force is stronger than the other and the forces act in different directions, they are _________.

• balanced forces

• unbalanced forces

• net forces

• gravity forces

Tags

NGSS.MS-PS2-1

Perla and Rital are pushing the same object. Perla pushes it to the right and Rital pushes it to the left. The object moves to the left. Explain what causes this.

• Rital is pushing the object with a stronger force than Perla.

• Perla is pushing with a stronger force than Rital.

Tags

NGSS.MS-PS2-2

A person uses the brakes to stop a bicycle. Describe the cause (reason) of this situation.

• force

• friction

• graviy

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A person uses the brakes to stop a bicycle. Describe the effect (result) of this situation.

• change in speed

• change in direction

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2