Potential and Kinetic
What is potential energy?
Stored energy
What is another word for Newtons first law?
Inertia
The change in velocity of an object, over time is __________.
Acceleration
Define newtons 3rd Law
Forces always come in pairs
This occurs when energy changes from one form to another.
Energy Transformation
Energy in motion
An object at rest stays at rest and an objective in motion stays in motion.
According to Newton's Second Law, the acceleration of an object is equal to
The net force acting on the object divided by its mass
When you push on a wall and the wall pushes back on you, this pair of forces is called this
action-reaction pair
When you turn on a light bulb electrical energy changes into these two forms.
Light and thermal energy
True or false: a ball on the ground has more potential energy than a ball on a hill.
False
The forces acting on an object that combine and form a net force that is not zero
Unbalanced Force
Unbalanced forces can make an object accelerate by changing its speed or by ...
Changing its direction
Action and reaction forces
In a roller coaster, energy changes from potential energy at the top to this energy as it speeds down.
Kinetic energy
Sam is Standing in line. Does or does he not have kinetic energy?
No
What will happen to an object at rest when balanced forces act on it?
It will remain at rest
Define newtons 2nd Law
an object's acceleration depends on the net force applied to it and its mass,
When a swimmer pushes water backward, this Force pushes the swimmer forward.
Reaction force
A toaster changes electrical energy into this form of energy to toast bread.
Thermal energy.
Potential or kinetic: a falling raindrop.
Kinetic
Inertia
A 27 N net force acts on a 9 kg rock. What is the accelerationof the rock?
3 m/s squared
This explains why a rocket can move forward even in the emptiness of space.
Newtons 3rd law
In solar panel, this type of energy is transformed into electrical energy.