Physics Middle School

What is Newton's First Law known as? The Law of

• Friction

• Mass

• Inertia

• Gravity

Newton's second law of motion describes acceleration as force divided by __________.

• mass

• inertia

• speed

• direction

Tags

NGSS.MS-PS2-2

The force that pulls an object in a circular motion and keeps it in a circular motion is centripetal force.

• True

• False

According to __________, the acceleration of an object is equal to the net force acting on the object divided by the object's mass. 

• Newton's Second Law

• Newton's Third Law

• Newton's First Law

Tags

NGSS.MS-PS2-2

Newton’s law states that for every action, there is an ________ reaction.

• unequal and opposite

• equal and similar

• stronger and opposite

• equal and opposite

Tags

NGSS.MS-PS2-1

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

• The cannon moving forward

• The cannon moving backwards

• The cannonball moving backwards

• The cannonball moving forward

Tags

NGSS.MS-PS2-1

The gravitational attraction between two objects is reduced most when--

• The masses are decreased, and the distance between them is increased

• The masses are increased and the distance between them is decreased

• The masses are decreased and the distance between them is decreased

Tags

NGSS.MS-PS2-4

How would the absence of friction affect a marble traveling on a long, straight path?

• The marble’s speed would decrease.

• The marble’s speed would increase.

• The marble would stop immediately. 

• The marble would remain at constant speed.

Tags

NGSS.MS-PS3-5

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

NGSS.MS-PS2-2

What pulls a ball back to earth?

• Gas

• Gravity

• Friction

• Molecules

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5