Vocabulary
A push or pull on something.
Force
An apple sitting on a table is an example of what type of force?
Balanced
Mrs. Isbell rolled a marble across the floor to Mrs. Romero. What force started the ball rolling? (balanced force, unbalanced force, gravity, friction)
Unbalanced force
The law that states an object in motion stays in motion unless acted on by an outside force
Newton's First law!
Force that acts on an object when it rubs against another object or material.
Friction
I played tug of war at field day, my team won! This force is....
Unbalanced force
This is the force that acts on a space shuttle as it accelerates toward Earth.
Gravity
Thinking of Newton's second law... If an 5kg ball accelerates at 6 m/s2 What is the force applied to the ball?
30 N
An invisible force that attracts objects to earth's surface
Gravity
Which will experience more acceleration when the same force is applied, a 10kg object or a 5kg object?
The 5kg object
Surfaces rubbing against each other is an example of...
Friction
Force and Acceleration
distance divided by speed
Time
What is needed to give a boulder acceleration?
A large force that changes the boulders speed/direction.
The sum of all forces acting on an object is called the
Net force
Which law explains why a person on roller skates can push themselves off of wall and move in the opposite direction?
Newton's third law
This exists when all the forces acting on an object result in the object staying at rest or moving at a constant speed in the same direction.
Balanced Force
For ______ to occur on this object, a force must act upon it.
Motion
How is force measured?
Newtons
Explain how a rocket launch works using Newton's 3rd law