Newton's Laws and Motion

An object at rest will _____ if not outside forces are applied.

• Stay at rest

• Decrease mass

• Increase velocity

A rubbing together force that slows things down and stops them.  It works against motion.

• acceleration

• mass

• gravity

• friction

According to Newton’s second law of motion, force is equal to mass times ______________________.

• inertia

• weight

• acceleration

• direction

Tags

NGSS.MS-PS2-2

A picture is hanging on a wall and does not move.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Tags

NGSS.MS-PS2-2

An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

When all the forces on an object are equal and opposite, & the net force is zero, that's...

• balanced forces

• unbalanced forces

• terminal velocity

• reaction forces

A force of 250 N is applied to an object that accelerates at a rate of 5 m/s². What is the mass of the object? To solve this problem you must do -

• 250 ÷ 5

• 5 ÷ 250

• 250 x 5

Tags

NGSS.MS-PS2-2

A 50 kg skater who is pushed by a friend accelerates 5 m/s². How much force did the friend apply? To solve this problem you must do -

• 50 ÷ 5

• 5 ÷ 50

• 50 x 5

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them