Force and motion

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Tags

NGSS.MS-PS2-2

What is one way to reduce friction?

• Put sandpaper between the surfaces that touch.
• Push the surfaces closer together.
• Shine a light on the surfaces.
• Put a slippery substance between the surfaces.

How does friction help us move from place to place?

• Friction does not help us.
• Friction keeps us from slipping and sliding.
• Friction only helps cats.
• Friction makes us slip and fall.

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

Tags

NGSS.MS-PS2-4

Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand

Tags

NGSS.3-PS2-1

Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand

In the image, which of the person and their bikes will get down a hill faster? 

• The boy because he is younger
• The woman because she is stronger
• The boy because he has a greater mass which applies a greater force
• The woman because she has more mass and applies a greater force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

Tags

NGSS.MS-PS2-2

How does friction help us move from place to place?

• Friction does not help us.
• Friction keeps us from slipping and sliding.
• Friction only helps cats.
• Friction makes us slip and fall.

A ____________ is a push or a pull on an object.

• friction
• force
• magnet
• gravity

Tags

NGSS.MS-PS2-2