The two factors that affect the strength of gravity?
What are mass and distance?
100
The direction objects want to move in
What is a straight line?
100
This renowned philosopher incorrectly described gravity as objects wishing to return to their natural resting place, but he had a screw- or lever- loose.
Who is Archimedes?
100
In a collision, these two things are conserved.
What are energy and momentum?
200
The friction of a baseball player sliding into first base.
What is sliding friction?
200
The fastest an object can fall due to air resistance.
What is terminal velocity?
200
The resistance to changes in motion
What is inertia?
200
A rocket pushes on this to move.
What is gas? (exhaust, fuel, and other answers are acceptable!)
200
The property of matter that allows you to catch a baseball without flying.
What is inertia?
300
The direction friction acts in.
What is in the opposite direction of motion?
300
You fall, and no other forces are involved.
What is Free Fall?
300
A unit of force, measured in 1 kg*m/s^2
What is a Newton?
300
The force that causes friction.
What is the electromagnetic force?
300
The formula to calculate momentum
What is mass times velocity?
400
The friction that keeps birds in the sky.
What is fluid friction?
400
The property of matter that bends space and time, causing gravity.
What is mass?
400
Objects will continue to be still, or continue to move, unless acted on by this.
What is an unbalanced force?
400
Sir Isaac Newton went as mad as a hatter in front of the king.
What is mercury?
400
Quality of motion- as described by Newton
What is momentum?
500
The two factors that friction depends on
What are the types of surfaces and how hard they are pushed against each other?
500
The law that states gravity acts between all objects in the universe.
What is the law of universal gravitation?
500
Forces occur in these types of pairs.
What is equal and opposite?
500
The force that acts on astronauts against the force of gravity so they experience 'weightlessness'
What is centripetal force?
500
The momentum of a 250 kg football player running at 5 m/s