An object in motion stays in in motion and an object at rest stays at rest unless acted upon by an outside force
What is Newton's First Law of Motion?
100
The force or friction that an object experiences as it travels through the air.
What is air resistance?
100
On a time vs distance graph, the steeper the line,......
What is the faster the speed?
100
Three forces that affect an object's motion are...
What is gravity, friction, air resistance, thrust, drag, lift...
100
An object traveling in a circular motion is constantly changing ...
What is direction? (or acceleration)
200
Force equals mass times acceleration.
How do you find force?
200
The shortest distance and direction moved from an object's initial to final position.
What is displacement.
200
If two objects are traveling at the same velocity, but have different mass, which has more momentum?
What is the object with greater mass?
200
Bernoulli's principle is responsible for which force on an airplane?
What is lift?
200
An object traveling in a circular path because it is being pulled toward the center is being affected by which force?
What is centripetal force? (As in a satellite circling the Earth.)
300
For every action there is an equal but opposite reaction.
What is Newton's third law of motion?
300
A center-seeking force causing an object to travel a circular path.
What is centripetal force?
300
Two objects traveling at the same speed have different velocities if they...
What is move in different directions?
300
Give three ways to reduce friction.
What are lubrication, wheels, less mass...?
300
Forces that are opposite and equal are..
What is balanced?
400
Inertia
What is another name for Newton's First Law of Motion?
400
Velocity
What is speed in a given direction.
400
What would a time vs. distance graph look like if the object is not moving at all.
What is the line be plotted horizontally straight across.
400
True or False...When forces are balanced there is no change in the motion of an object.
What is true? The object will continue at the same rate and direction until forces are unbalanced.
400
A skydiver jumps from a plane. She continues to accelerate as she falls until she reaches.....and doesn't fall any faster. Then she pulls her parachute.
What is terminal velocity?
500
This demonstrates Newton's 2nd Law of Motion. The acceleration of an object depends on its mass. The more mass, the more inertia, the harder it is to accelerate.
A small car that has less mass has better gas mileage than a larger car with more mass. What does this demonstrate?
500
The sum of all forces acting on an object.
What is the net force.
500
An object has traveled 100 miles in 5 hours. What is the object's average speed?
What is 20 mph?
500
A change in the force of gravity pulling on you will change your...
What is weight?
500
A 12 kilogram mass is accelerated across a smooth surface at 4 meters/second per second. What is the force that caused this acceleration?