Force and Motion Review

Why do we need friction?

• It helps objects go faster. 
• It helps objects go up higher.
• It helps make objects go slower or stop.

What does a curved line on a distance-time graph show?

• That the speed is changing. 
• That the object is not moving. 
• That the object is constant. 

Tags

NGSS.MS-PS3-1

What are EQUAL forces acting on an object in opposite directions that do not change the object's motion?

• Friction
• Weight
• Balanced Forces
• Unbalanced Forces

If an object does not move at all, what does that mean about the forces acting on the object? 

• The forces are balanced. 
• The forces are unbalanced. 

Tags

NGSS.HS-PS2-1

Is a force that pulls objects toward each other and down to the ground

• Force
• Friction
• Gravity
• weight

Tags

NGSS.MS-PS2-4

Ted was rolling a pencil on his desk and the pencil fell down to the ground. What force made this occur?

• Magnetism
• Gravity
• Friction

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

What are UNEQUAL forces acting on an object in opposite directions that cause motion?

• Balanced Forces
• Unbalanced Forces
• Gravity

Tags

NGSS.MS-PS2-2

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Tags

CCSS.8.EE.B.5

This is an example of _____ because the object WILL move. 

• Unbalanced Forces
• Balanced Forces
• Neither

Tags

NGSS.3-PS2-1

During tug-of-war, one side of students were pulling with a force of 120 N and the other side was pulling with a force of 80 N. Were these forces balanced or unbalanced? 

• Balanced 
• Unbalanced 

Tags

NGSS.3-PS2-1