1.2 work, power and laws of motion TT 23

What is a force?

• Any push or pull

• change in speed

• something that causes no motion

• tendency of an object to resist a change in its motion

Newtons 3rd Law of Motion states:

• An object at rest will remain at rest unless acted upon by an outside force.

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

• The greater the mass of an object, the more force it will take to accelerate the object

What Newtons law does this picture represent

• Newtons 1st law

• Newtons 2nd law

• Newtons 3rdt law

• Newtons 4rth law

An object in motion stops when.....

• It falls of an edge.

• it is acted upon by an outside force.

• It is eaten

• It never stops

A fireman turns on his hose and is knocked backwards is an example of...

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4rth Law

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

An automobile you are riding in suddenly stops, but you continue to go forward.

• Newton's
  1st
  Law of Motion
• Newton's
  2nd
  Law of Motion
• Newton's
  3rd
  Law of Motion

• 1st
• 2nd
• 3rd

• 1st
• 2nd
• 3rd

• 1st
• 2nd
• 3rd