When your body continues to move forward in a car until the seat belt stops you, this is experiencing ________.
What is inertia?
100
Formula for Newton's second law.
What is F= ma?
200
What is measured in two units: distance and time
What is speed?
200
Air resistance is a type of __________.
What is friction?
200
This person developed three laws of motion.
Who is Sir Isaac Newton?
300
If a car is traveling north at 100 kilometers per hour, what is its velocity?
What is 100 km/hr, north?
300
This term depends on mass and distance.
What is gravity?
300
An object at rest stays at rest and an object in motion keeps a constant velocity unless it is acted on by _____.
What is force?
400
What is a change in velocity?
What is motion?
400
A force that resists the movement of one surface against another.
What is friction?
400
In a car accident, air bags act against passenger's ______.
What is inertia?
500
If you double the amount of force, the amount of acceleration _________.
What is doubles?
500
When forces are unbalanced the net force is no longer _____.
What is zero
500
A ball is rolling along the ground and moving forward at a constant velocity. However, the force of _________acts on the ball and slows it down, eventually making it stop. This also is _____.