Forces and motion

Which is true from Newton's Third law of motion?

• For every action force there is a smaller reaction force in the opposite direction.
• For every action force there is an equivalent reaction force in the opposite direction.
•  Both 1 and 2
• None of the above

Tags

NGSS.MS-PS2-1

What is Newtons 2nd law?

• equal&opposite force
• law inertia
• f=ma

Tags

NGSS.MS-PS2-2

When forces on an object are balanced, what is the force?

• Five
• Ten
• Six
• Zero

How can you increase the acceleration of an object?

• decrease its mass
• increase its friction
• increase its mass
• decrease the force applied to it

Tags

NGSS.MS-PS2-2

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

Tags

NGSS.MS-PS3-1

Total distance divided by total time is

• average speed
• constant speed
• instantaneous speed
• acceleration

______ measures an object's tendency to resist changing its motion.

• Acceleration
• inertia
• Gravity
• weight

The formula 
? = mass x acceleration
or 
? = m x a 
is used to find 

• Force
• Velocity
• Momentum
• Gravity

Tags

NGSS.MS-PS2-2

The formula 
? = Distance / Time 
or 
? = D/T 
is used to find

• Velocity 
• Force
• Momentum
• Speed

Tags

NGSS.MS-PS3-1

It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes

• Newton's first law, the law of inertia
• Newton's second law, the law of acceleration
• Newton's third law, the law of action reaction 
• The law of universal gravitation

Tags

NGSS.MS-PS2-2