University Physics

An object at rest will _______ if no outside forces are applied.

• Stay at rest
• Increase Velocity
• Decrease Mass

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

• True
• False

Tags

NGSS.MS-PS2-2

The SI units for force are...

• Kilograms
• Newtons
• Meters per second
• Pounds

If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?

• the cannonball
• the baseball
• The balls land at the same time.
• the ball with the larger volume

Tags

NGSS.MS-PS2-4

A crumpled piece of paper hits the ground before a flat sheet of paper because

• the acceleration of gravity is greater on the  crumpled paper.
• there is more air resistance against the flat paper.
• the crumpled paper is more massive
• the crumpled paper is less massive.

Tags

NGSS.MS-PS2-4

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• accelerate.

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.
• The one with a mass of .52 kg will have the greatest acceleration.
• They will both accelerate at the same rate.

Tags

NGSS.MS-PS2-2

Who is the scientist who came up with the Laws of Motion?

• Sir Isaac Newton

• The Greeks

• John Dalton

• Sir John Newt

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What law states an object at rest stays at rest unless acted upon by a net force or a moving object at a contant speed will continue to move in a straight at a constant speed?

• First
• Second
• Third
• Fourth

What law describes how acceleration, mass and net force are related?

• First
• Second
• Third
• Fourth

Tags

NGSS.MS-PS2-2