A place used for comparison to determine if something is moving.
What is a reference point?
100
A flat slanted surface. This allows you to exert your force over a longer distance.
What is an inclined plane?
100
The resistance of an object to change its motion.
What is Inertia?
100
Balanced forces acting on an object cause it to _________.
What is accelerate?
100
Motion is a change in direction.
What is False(Position)?
200
When an objects distance from another object is changing.
What is motion?
200
This simple machine is used by pulling a rope which changes the direction and amount of force applied to an object.
What is a pulley?
200
The equation for force.
What is F=ma?
200
What does "p" stand for?
What is momentum?
200
Friction is a force that accelerates objects.
What is False (slows down)?
300
This is the distance an object travels in a certain period of time.
What is speed?
300
This simple machine has a fixed point of rotation on the left side of a rigid bar.
What is a 2nd class lever?
300
This is the force that accelerates objects toward the Earth.
What is gravity?
300
The formula to find acceleration.
What is (vf-vi)/t?
300
As a moving objects velocity decreases, its momentum decreases.
What is True?
400
When an objects direction and speed is known, you know the objects ________________.
What is velocity?
400
This is the ideal mechanical advantage of a wheel and axle with a wheel radius of 25m and an axle radius of 5m.
What is 5?
400
This is the other units that equal a Newton.
What is kg m/s2?
400
(output work/ input work)x 100
What is efficiency?
400
The force of gravity causes all objects to fall with an acceleration of 20 m/s2.
What is false (9.8m/s2)
500
In science, an object can be accelerating if one of these three things are happening to the object.
What is increasing speed, decreasing speed, or changing direction?
500
The ideal mechanical advantage of an inclined plane with a height of 6m and a length of 18m.
What is 3?
500
You are pushing a box across a surface. If you wanted to accelerate the rate at which the box was moving you would have to increase the force you were applying to the box. This is an example of which law of motion?
What is the 2nd Law of Motion?
500
The formula to find speed.
What is d/t ?
500
Newton's third law of motion states that an object in motion will stay in motion unless acted on by an outside force.