Newton's 1st Law
Newton's First Law of Motion definition
What is an object at rest will remain at rest until acting upon by an unbalanced force and an object in motion will remain in motion until acted upon by an unbalanced force.
acceleration of an object depends on the object's mass and magnitude of the force acting upon it (F=ma)
What is Newton's Second Law of Motion?
For every action there is an equal and opposite reaction
What is Newton's Third Law?
A push or pull
What is a force?
A type of force will cause a change in objects motion
What is an unbalanced force?
the tendency of a physical object to remain still or continue moving until force acts upon the object
What is inertia?
Newtons (N)
What unit is used to measure force?
Force always comes in _____.
What is pairs?
stored energy
What is potential energy?
Forces acting upon an object that is NOT moving
What are balanced forces?
When a moving bus is suddenly stopped, the passengers tend to fall forward.
What is inertia?
A moving skateboard uses ________ energy.
What is kinetic energy?
What will occur if a book pushes down on a table with a force of 5 N
The table pushes back with a force of 5 N.
Energy in motion
What is kinetic energy?
One force is 30 N and another force is 85N resulting in a net force of 55 N
What is an unbalanced force?
a force that acts opposite to the direction of the motion
What is friction?
When riding a roller coaster, you go up and down many hills. As you get to the top of a roller coaster, what energy change is taking place?
What is kinetic energy changing to potential energy?
A baseball player hits a ball with a force a 5 N. What force does the bat experience?
What is 5 N?
A stretched rubber band has _____ energy.
What is potential energy?
Two objects have equal force
What is a balanced force?
A truck that is travelling at a constant speed is carrying some boxes. If the truck comes to a sudden stop, what will most likely happen to the boxes?
What is sliding toward the front of the truck?
Explain what happens to the potential energy of a rock as it falls off the side of a cliff.
What is the potential energy decreases as the kinetic energy increases?
If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on _____.
What is object A?
Maximum potential energy on a roller coaster
What is at the top of a big hill?
The wind is blowing south with a force of 5 N, and a car is going north with a force of 45 N. The net force and
direction ____.
What is 40 N north?