Newton's First Law
This law states that an object stays at rest, and an object in motion stays in motion unless acted upon by an external force.
Newton's First Law of Motion
This law states that force equals mass times acceleration.
Newton's second law.
This law states that for every action, there is an equal and opposite reaction.
Newton's 3rd law
This form of energy is the energy of motion.
Kinetic energy
This force resists motion when two surfaces rub against each other.
Friction
This term refers to an object's resistance to changes in its motion.
Inertia
This equation represents Newton's second law.
F=MA
When you push against a wall, this is the force that pushes back on you.
The reaction force.
This type of energy is stored due to an object's position or shape.
Potential Energy.
This force pulls objects toward the center of the earth.
Gravity
According to newtons first law, this must act on a moving object to change it's speed or direction.
Unbalanced forces
According to Newton's second Law, increasing this while keeping force constant will decrease acceleration.
Mass
According to Newton's third law, these forces are equal in strength and opposite in direction.
Action and reaction forces.
This form of energy is produced by vibrating objects and travels as waves.
Sound Energy
This type of Friction acts on objects moving through air.
Air Resistence.
When a hockey puck slides across ice and eventually stops this force is responsible for breaking Newton's first law.
Friction
If the same force is applied to two objects, the one with less mass will have this.
Greater Acceleration
This explains why a rocket moves forward as exhaust gases are pushed backward.
Newton's 3rd law.
This type of energy comes as the movement of electric charges.
Electrical Energy.
Friction usually causes moving objects to do this overtime.
Slow down or stop
A seat belt protects passengers during a sudden stop by counteracting this tendency described in Newton's first law.
Inertia
This happens to acceleration when the force on an object is doubled and its mass stays the same.
The acceleration doubles
When a swimmer pushes water backward, this is what causes the swimmer to move forward.
Reaction force.
This form of energy is energy we receive from the sun and can travel through empty space
Radiant Energy.
This factor increases the force of gravity between two objects
Greater Mass