Movement
What is the change in an object's position?
motion
This is a bar that turns on a point.
lever
The amount of matter something has is __.
mass
Newtons
This is an inclined plane wound around a cylinder or cone.
screw
This is a force that keeps objects from moving against other objects.
friction
pulley
Energy due to position or condition is ___.
potential energy
When a force moves an object a distance this is done.
work
This is the decrease in effort needed to move an object.
mechanical advantage
This is determined by the mass and velocity of an object.
Momentum
This has a wheel with a rod running through the wheel.
wheel and axle
Energy due to motion is __.
kinetic energy
This is the force applied to a simple machine.
effort force
This is the resistance to change in motion.
inertia
This is the speed of a moving object in a given direction.
velocity
This is a flat, slanted surface that makes it easier to move an object up a distance.
inclined plane
Which of Newton's Laws of motion explains why more force is needed to move a full box than an empty box.
F = ma
This is the force that works against the effort force.
resistance force
What is a block and tackle?
This machine combines multiple fixed and movable pulleys.
This occurs when an object speeds up, slows down, or changes direction.
acceleration
This is two inclined planes places back-to-back and used to split or lift objects.
wedge
What law of motion explains why objects fall off the seat of the car when the car stops suddenly.
An object in motion stays in motion unless acted on by an outside force.
What is a force?
a push or a pull
What is the spot where a lever turns called?
fulcrum