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 fluid resistance?
100
The SI unit of force is the
newton
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.
What is Newton's 2nd Law of Motion?
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
When an unbalanced forces acts on an object
The object accelerates
200
A satellite circling the Earth is an example of this force...
What is centripetal force?
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
What kind of friction occurs as a fish swims through water?
Fluid
300
Forces that are opposite and equal are..
What is balanced?
400
What is another name for Newton's First Law of Motion?
Inertia
400
Velocity
What is speed in a given direction.
400
The product of an object's mass and velocity is its
momentum.
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
A small car that has less mass has better gas mileage than a larger car with more mass. What does this demonstrate?
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.
500
The sum of all forces acting on an object.
What is the net force.
500
What is conserved when two objects collide in a closed system?
momentum
500
A change in the force of gravity pulling on you will change your...
What is weight?
500
an open parachute increases air resistance of falling sky diver by