Unit 2 Physical Science

Which of the following is NOT a property of forces?

• Forces can make objects start moving

• Forces can make objects move faster

• Forces do not affect motion

• Forces can make ojects change shape.

Equation to solve for time:

• Distance/ Speed

• Speed/ Distance

• Acceleration x Velocity

• Distance x Velocity 

Two factors effecting the magnitude of force of gravity between 2 objects are...

• weight and mass 
• distance and weight 
• mass and matter 
• mass and distance 

A person would weigh more on Jupiter than on the Earth because---

• Jupiter has less mass, and therefore less gravity
• Jupiter has more mass, and therefore less gravity.
• Jupiter has less mass, and therefore more gravity.
• Jupiter has more mass, and therefore more gravity

What force slows objects down and keeps them from moving?

• Acceleration

• Gravity

• Friction

• Net Force

Which one of Newton's laws are displayed

• 2nd law

• 1st law

• 3rd law

An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe

• 2nd law

• 1st law

• 3rd law

This is Newton's 3rd law

• True

• False

When there is a change in motion?

• When forces are balanced

• When the forces are unbalanced

• Whe forces are equal

• Never

The momentum of an object depends upon the object's ___________&_____________.  

• size and shape
• mass and speed
• mass and veloctiy
• mass and energy