All About the Facts
Balanced or Unbalanced
Gravity and Friction
Simple Machines
Key Terms
100
What is a PUSH or PULL on an object?
What is Force?
100
A bowling ball striking pins at the end of an alley.
unbalanced
100
The force that acts directly against the direction of motion.
What is friction?
100
What non-contact force pulls objects back to Earth?
Gravity
100
Mike lifted a heavy box. What force did he have to overcome to move the box upward?
Gravity
200
If these boys are each pulling with the force of 10 newtons. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
They will not move at all. Balanced force is being applied.
200
A rock that slows down every time it skips until it sinks.
Unbalanced
200
True or False: Gravity is a force that pulls objects down to Earth.
True
200
You let go of a balloon- the air goes one way and the balloon goes the opposite direction. This is an example of which law of motion?
What is Newton's 3rd Law of Motion?
200
This is a force between two surfaces rubbing against each other. It works against the motion of an object.
What is friction.
300
Which of the following statements is true?
Balanced forces cause a change in position.
Unbalanced forces cause a change in position.
Forces do not affect position.
Unbalanced forces cause a change in position.
300
Where the force attaching the hook to the wall, holds a picture frame.
Balanced
300
A soccer ball is at rest on the ground. When a force is applied to it, it moves. If larger force is applied to it, how will the motion of the soccer ball change?
A. The ball will move slower.
B. The ball will stop.
C. The ball will come to a faster.
C. The ball will move faster.
300
A car is easier to push than a bus. This is an example of which of Newton's Laws?
What is Newton's 2nd Law of Motion?
300
What is an increase in motion?
Acceleration
400
Planets orbiting the sun in a fixed orbit.
Balanced Force
400
Newton's second law of motion relates these three things.
What are: mass, acceleration, and force?
400
the measurement of the time it takes to travel a certain distance
What is speed
500
Name at least 3 things that force can do.
1. Keep an object at rest (not move).
2. Make an object move.
3. Change the object's direction.
4. Slow down or stop the moving object.
500
Describe what is happening in the photo.
one person is using more force so the force is unbalanced
500
Describe what the picture is explaining
500
The tendency of an object to resist any change in its motion.
What is inertia?