Potential and Kinetic
What is Kinetic energy?
The energy object possesses due to its motion.
Force gained by motion as a result of mass and velocity?
Momentum (p)
You run into your friend while skating and both of you fall in opposite directions. This is an example of which law of motion?
Newton's 3rd law. Law of Action and Reaction.
PE=m x g x h
What is m=? g=? h=?
m= mass
g= acceleration due to gravity (9.8m/s2)
h= height in (m-meters)
What is Balanced force?
Balanced forces are equal in size and opposite in direction. When forces are balanced, there is no change in motion.
What is Potential energy?
Energy stored in an object due to its position.
What century did Newton live in?
17th century
This is the natural tendency of objects to keep on doing what they're doing.
Inertia. (1st Law of motion)
What is the force that pulls objects toward the center of the Earth?
Gravity
What is Unbalanced Force?
Unbalanced force is force applied in one direction is greater then force applied in opposite direction.
What variable(s) determine the amount of kinetic energy an object has?
Mass and speed.
This is a push or pull.
Force.
F=m x a Force is equal to ______?
What is F, m, and a?
F- Force
m- mass
a- acceleration
What is velocity?
Speed with direction.
What is Newton's 3rd law?
Law of Action and Reaction. For every action there is equal but opposite reaction.
What variable(s) determine the amount of potential energy an object has?
The object position and its mass.
Force is measured in units of_______?
Newtons (N).
An object will_______________ in the direction that you push it.
Accelerate
A force that slows or stops motion when objects rub together?
Friction
State the Newton's 2nd Law?
The more mass an object has the more force we need to apply to move an object. Law of acceleration
Explain how you can increase the potential energy of an object?
You could move an object to greater height or distance OR you could increase an object's mass.
This is a force of resistance between 2 objects.
Friction.
Kinetic energy will increase if we increase mass?
True or False?
True.
An unbalanced force doesn't affect motion.
True or false?
False
Newton's 1st Law of motion?
Law of Inertia. Object at rest will stay at rest, object at motion will stay at motion, until some outside unbalanced force acted upon it.