Forces

Newton's First Law states that an object in motion stays in motion, and an object at rest ____________, unless acted upon by an unbalanced force.

• accelerates

• stays at rest

• begins to move

• enters a chaotic state

Force is a vector.

• True.

• False.

Tags

NGSS.HS-PS2-1

Acceleration is a...

• vector.

• scalar.

Tags

NGSS.HS-PS2-1

A pulling force usually associated with a rope or a string.

• Tension

• Spring force

• Friction

• Weight

The force of gravity acting on an object.

• Tension

• Spring force

• Friction

• Weight

Tags

NGSS.HS-PS2-4

A force that holds back the movement of an object sliding over a surface.

• Tension

• Spring force

• Friction

• Weight

The normal force always points perpendicular to the surface.

• True.

• False.

Select the matching situation.

• A rocket accelerating during lift-off.

• A monkey hanging from a rope.

• A car being towed.

• A book at rest on a table.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Select the matching situation.

• A rocket accelerating during lift-off.

• A monkey hanging from a rope.

• A car being towed.

• A book at rest on a table.

Tags

NGSS.HS-PS2-1

Select the matching situation.

• A rocket accelerating during lift-off.

• A monkey hanging from a rope.

• A car being towed.

• A book at rest on a table.

Tags

NGSS.HS-PS2-1