Physical Science Post Test

 What is the unit called that measures force?

• Isaac
• Yee
• Newton
• kilogram

  The term inertia means an object's resistance to motion; which of Newton's laws involves inertia?

• first
• second
• third
• fourth

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

• first
• second
• third 
• fourth

A(n) __________ is a push or pull.

• newton
• acceleration
• force
• momentum

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If you exert a net force of 8 N on a 2-kg object, what will its acceleration be?

• 2 m/s²
• 4 m/s²
• 16 m/s²
• 10 m/s²

Tags

NGSS.MS-PS2-2

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

• Stay at rest
• Increase Velocity
• Decrease Mass
• Go to sleep

Pushing  a child on a swing is easier than pushing an adult on the same swing. 

• 1st Law 
• 2nd Law

Tags

NGSS.HS-PS2-1

If an action force is a cue ball (white) hitting a billiard ball (various colors) when playing pool, then the reaction force is

• exerted on the table
• exerted on all the other billiard balls.
• not present
• exerted by the billiard ball on the cue ball.

Tags

NGSS.MS-PS2-1

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.

A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

• For every action there is an equal and opposite reaction.
• Every mass exerts a force on every other mass.
• An object at rest tends to stay at rest.
• Friction opposes the motion of an object.

Tags

NGSS.MS-PS2-1