Motion Review

What is the net force and the direction of movement?

• 50 Newtons, Left
• 50 Newtons, Right
• 500 Newtons, RIght
• 450 Newtons, LEft

What is Newtons 1st law of motion?

• Force= Mass multiplied by acceleration 
• An object at rest stays at rest unless acted on an unbalanced force. (inertia)
• For every action there is a equal and opposite  re-action.
• law of gravity 

What is Newtons 2nd law of motion?

• Pancakes 
• Force= Mass multiplied by acceleration
• For every action there is a equal and opposite  re-action.
• Law of gravity 

What law of motion does this picture represent?

• Newtons 1st law
• Newtons 4th law 
• Newtons 3rd law 
• Newtons 2nd law

A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia?

•  m = 3.0 kg
• m = 4.0 kg 
• m = 3.0 ml 
• m = 30.0 g

__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 

• velocity
• gravity
• net force
• distance

A toy car moves right, covering 5.50 m in 2.80s.  What is the speed of the car?

• 1.96 m/s
• 1.96 m/s right
• .590 m/s
• .509 m/s right

______ forces affect the motion of an object by speeding it up, slowing it down, or changing the direction of it.

• Balanced
• Strong
• Unbalanced
• WeaK

An object's resistance to its change in motion is its

• Friction
• Inertia
• Gravity
• Pressure

A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5 m/s to the south. Compare the momentum of the child with the momentum of the bike.

• Both the child and the bike have the same momentum

• the bike has a greater momentum than the child

• the child has a greater momentum than the bike

• neither the child nor the bike has momentum