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Forces
Motion
Gravity
Newton's 3 Laws
Toss Up
100
The unit for measuring force
What is Newton
100
To observe motion, you must observe the object in relation to another object that appears to stay in one place, which is called this.
What is Reference Point
100
The measure of the force of gravity.
What is Weight
100
Newton's First Law is also called this.
What is Law of Inertia
100
Two or more objects may exchange momentum when they collide, but the total momentum stays the same.
What is Law of Conservation of Momentum
200
A force that opposes motion between two surfaces that are touching.
What is Friction
200
Total Distance/Total Time gives you this.
What is Average Speed
200
The free fall acceleration of objects on Earth due to gravity.
What is 9.8 m/s2
200
The phrase "For every action there is an equal and opposite reaction" describes this law.
What is Newton's Third Law
200
If there is no air resistance acting on an object it is said to be in this.
What is Free Fall
300
The force that occurs between two objects that is due to their masses.
What is Gravity
300
The SI unit for speed.
What is Meters per Second (m/s)
300
The law that describes the relationship between gravity, mass, and distance.
What is Law of Universal Gravitation
300
The tendency of an object to resist a change in motion.
What is Inertia
300
When air resistance exactly matches the downward force of gravity, the object then falls at a constant velocity called this.
What is Terminal Velocity
400
This opposing force slows down objects as they fall through the atmosphere.
What is Air Resistance
400
The curved path an object follows when thrown or propelled near the surface of the Earth.
What is Projectile Motion
400
The unbalanced force that causes objects to move in a circular path. Gravity usually provides this for objects in orbit.
What is Centripetal Force
400
Acceleration depends on these two things.
What is Force and Mass
400
This Italian scientist proved that the mass of an object does not affect the rate at which it falls.
What is Galileo
500
At terminal velocity, these two forces equal.
What is Air Resistance = Gravity
500
A change in velocity over time.
What is Acceleration
500
Two puzzling questions that Isaac Newton helped answer.
What is Why do objects fall toward Earth? What keeps the planets in motion in the sky?
500
A property of a moving object that depends on the object's mass and velocity.
What is Momentum
500
The slope of a velocity vs. time graph is this.
What is Acceleration