Which of the following is an example of an unbalanced force?

• A ball resting on the ground.

• A book sitting on a table.

• A person kicking a soccer ball.

• A chair staying still.

Tags

NGSS.MS-PS2-2

What force pulls objects down to the ground?

• Gravity

• Magnetism

• Electricity

• Wind

Tags

NGSS.5-PS2-1

What happens when a force is applied to an object?

• It may start moving.

• It will shrink.

• It will disappear.

• It will float.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When a force is applied in the opposite direction of an object’s motion, what happens?

• The object speeds up.

• The object stops or slows down.

• The object moves in circles.

• The object moves faster in the same direction.

Tags

NGSS.MS-PS2-2

If you drop a ball, the force that pulls it down is (a)   .

• Push
• Friction
• Gravity
• Magnetism

Tags

NGSS.MS-PS2-4

What force helps you slow down when you ride a bike and use the brakes?

• Gravity

• Friction

• Magnetism

• Wind

What will happen if you pull a toy car with more force?

• It will move slower.

• It will move faster.

• It will stay in the same place.

• It will jump in the air.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If you roll a ball on a smooth floor and no other forces act on it, it will (a)   .

• It will roll forever.
• It will speed up on its own.
• It will slow down and stop.
• It will jump into the air.

Tags

NGSS.MS-PS2-2

What force helps you grip the ground so you don’t slip when walking?

• Gravity

• Friction

• Magnetism

• Wind

What will happen if you push an empty shopping cart and a full shopping cart with the same force?

• Both carts will move at the same speed.

• The full cart will move faster.

• The empty cart will move faster.

• Neither cart will move.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2