Ch 15- Force and Motion

A push or pull that causes an object to move, stop, or change direction.

• force
• motion
• energy
• inertia

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

When a car drives by, we know it is in motion because we use a frame of reference. How many times do you need to see a still image to compare its motion?

• it is not moving

• once

• twice

• motion

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

Mass is

• how much you weigh

• the amount of matter in an object

• always changing

• motion

two objects rubbing together, one object slows down

• motion
• stop
• force
• friction

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

A ___________ surface has more friction.

• rough

• smooth

A _____________________ must be exerted on an object to cause it to move.

• weight

• inertia

• force

• gravity

If two people pull on an object in opposite directions with forces that are the same size the forces are ___________________.

• unbalanced

• mass

• balanced

• stronger

an object tendency to stay in motion or at rest until an outside force acts upon it is

• gravity

• push

• pull

• inertia

The measure of the force of gravity on your body is your _________________

• height
• length
• weight
• age

Tags

NGSS.5-PS2-1