A force is a ___________ or a ___________ that can make things move.

• up or a down

• guinea pig or a hamster

• magnet or a paperclip

• push or a pull

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Gravity is a force that _________________________________.

• cannot make anything move.

• pushes objects up to the sky.

• pulls objects down to the center of the Earth.

Tags

NGSS.5-PS2-1

True or false? Balanced forces (BF) are equal or the same.

• True

• False

Tags

NGSS.3-PS2-1

True or false? Unbalanced forces (UF) make things start to move.

• True

• False

Tags

NGSS.MS-PS2-2

In the picture, the red team is pulling harder than the blue team. We can say that the forces are

• Balanced, so the rope will not move.

• Unbalanced, so the rope will move toward the red team.

Tags

NGSS.MS-PS2-2

In the picture, the rocket is moving up to outer space. Which force must be stronger?

• the pulling force of gravity

• the pushing force of the engine

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

In the picture, the students are pushing on the box with the same amount of force. Will the box begin to move?

• Yes, because the forces are different (unbalanced).

• No, because the forces are the same (balanced).

Tags

NGSS.MS-PS2-2

In the picture, the forces are balanced and the box is NOT moving. If the student on the right is pushing with 200 units of force, the student on the left is pushing with ___________________________.

• 200 units of force

• 300 units of force

• 400 units of force

Tags

NGSS.HS-PS2-1

in the picture, the parachutist is falling to the Earth. If gravity is pulling her down with 400 units of force, how many units of force could the air be pushing her back up with?

• 300

• 400

• 500

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In the picture, the forces on the duck are balanced. If the water is pushing him up with 300 units of force, how many units of force is gravity using to pull him down?

• 200

• 300

• 400

Tags

NGSS.MS-PS2-2