Newtons Laws
Newton’s First Law is also known as the law of
Inertia
Force is the product of
Mass and acceleration
What is potential energy
Not moving
A bicyclist pedaling up a hill.
Kinetic
What is the Unit of force
Newtons
If an object is at rest, what must be applied to get it moving?
Force
How could you describe a force?
Push or Pull
What is kinetic energy
Moving Energy
An archer with her bow drawn
Potential
What is the sum of all forces acting on an object called?
Net Force
According to Newton’s Third Law, for every action there is an equal and opposite
Reaction
What is non-contact force
a force that one object can apply to another object without touching it
State the law of conservation of energy
Energy cannot be created nor destroyed
The wind blowing through your hair.
Kinetic
In a tug of war, when one team is pulling with a force of 100 N and the other 80 N, what is the net?
20N
Are mass and weight the same thing?
No
Contact force
A push or pull on one object by another that is touching it
What is mechanical energy
The net energy of Kinetic and potential
The chemical bonds in sugar
Potential
Which do you think would have greater inertia: an empty box or a box filled with bricks? Why?
Box filled with bricks, because it has more mass
Explain Newton's 3 Laws of Motion
1st: A body at rest will remain at rest unless a force is acted upon it
2nd: f=ma
3rd: For every action there is an opposite reaction
Your older brother has told you that his paper airplane has hit inertia, what does that mean?
The plane is going a constant speed
Explain the energy transformations that occur when a ball is thrown in the air.
Initial throw the ball has the greatest amount of kinetic energy at the top before the ball falls it has the greatest potential energy then transforms to kinetic energy as it falls
Sitting on top of a tree.
A bowling ball rolling down the alley.
A bowling ball sitting on the rack.
Potential
Kinetic
Potential
What is the force that acts between two objects in contact because of action-reaction?
Friction Force