Newton's 2nd Law & Hypersonics

What Unit do we Measure Force in? 

• Newtons
• Joules
• Force
• Don't know

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is Newton's 2nd law of motion?

• Pancakes 

• Force = Mass multiplied by acceleration

• For every action there is an equal and opposite reaction.

• Law of gravity 

A change in velocity over time is called ___________.

• speed
• force
• acceleration
• direction

What is the net force?

• 40 N left

• 0 N Balanced

• 400 N right

• 40 N right

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

What happens when unbalanced forces act on an object at rest?

• the object remains at rest

• the object begins moving in an unpredictable direction

• the object begins moving in the direction of the net force

• the object begins moving opposite to the direction of the net force

A ball is rolling on the floor and a force pushes it in the same direction, what will happen?

• The ball will go faster.
• The ball will slow down.
• The ball will stop. 
• The ball will fly in the air.

Tags

NGSS.MS-PS2-2

How much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s²?

(Remember, Newton's 2nd Law states that Force = Mass * Acceleration)

• 36 N

• 12 N

• 3 N

• 0.33 N

According to Newton's Second Law, which would take more force to slow down?

• The silver car

• The green car

• They would both take the same force

The value 20 N is an example of:

• mass
• weight
• force
• acceleration 

Tags

NGSS.MS-PS2-1