Newton's 1st law
what is Newton's 1st law?
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
What is Newton's 2nd Law?
F=MA (Force equals mass times acceleration)
What is Newton's 3rd Law?
For every action there is an equal and opposite reaction
What happens to an object's potential energy as it falls?
Increases or Decreases
It decreases.
Give me a statement about energy.
*Double points to those who answers it verbatim*
It cannot be created or destroyed.
It allows use to use electricity, light bulbs, etc.
List any object at rest.
Chair, Desk, Computer, ect.
When a car increases its speed it is called...
Acceleration
If you are pushing the wall, what is it doing back to you?
Pushing back on you
Newtons
A measure of the amount of matter in an object is called?
Mass
The tendency of an object to resist a change in motion is called?
Inertia
An object's change in position relative to a reference point is?
Motion
What do we call something that is going in the direction with the same speed?
Velocity
A book sitting on a high shelf has what type of energy?
Kinetic or Potential
Potential
When you push a box across the floor, what force opposes the motion?
Friction
A force that opposes motion between two surfaces that are in contact is called...
Friction
Equal forces acting on an object that produce a net force of zero.
Balanced or unbalanced
Balanced
What forces that produce a nonzero net force?
Balanced or unbalanced
Unbalanced
What two things affect the amount of kinetic energy an object has?
Mass and velocity
Determines how much inertia an object has
Mass
If a person rolls down a hill, what will stop them?
*a few answers possible; only one worth double points*
Grass or Friction *double points*
A cannonball with a mass of 5kg is flying at an acceleration of 10 meters per second squared.
How much is the force?
50kg
A ball rolling down a hill is an example of which type of energy being converted to another?
Potential to Kinetic
When you jump on a trampoline, at the highest point you have maximum what type of energy?
Maximum Potential Energy
Which law explains why you move backward when firing a water hose forward?
Newton's Third Law