The ideal number of times a trial should be tested when doing an investigation.
Choices: 1, 2, 10, 3
What is 3?
100
A bar that tilts around a fixed point to produce a useful motion.
What is a lever?
200
A force that acts on an object when it rubs against another object or material.
What is friction?
200
A force that exists when all the forces acting on an object result in a change of motion of the object
What is an unbalanced force?
200
The background or non-moving object in the used in describing the motion of another object.
What is the point of reference?
200
What should always be included in your data (besides the number itself).
What are units?
200
A simple machine that is a wheel with a groove in it.
What is a pulley?
300
A force that exists when all the forces acting on an object result in the object staying at rest
(or moving at a constant speed in the same direction).
What is a balanced force?
300
The force exerted by the user on any simple machine.
What is effort force?
300
The measurement of how fast an object travels from one point to another.
What is speed?
300
The way (formula) to determine the speed of an object.
What is distance/time or d/t ?
300
A simple machine made with a flat slanted surface.
What is an inclined plane?
400
A force that is a push or pull that touches or comes in contact with an object to change motion.
What is a contact force?
400
The force exerted by the simple machine on the load.
What is load force (force on the load)?
400
The scientist who created three famous laws of motion.
Who is Sir Isaac Newton?
400
A good way to show a lot of data/numbers so that we can see relationships, patterns, etc.
What is a line graph (or graph)?
400
A simple machine that has a center rod that is attached to a wheel.
What is a wheel and axle?
500
Magnetism, gravity, and electricity are types of this force.
What are non-contact forces?
500
The four forces of flight.
What are thrust, lift, drag, and weight/gravity?
500
Newton's first law of motion is....
What is an object at rest tends to stay at rest unless acted on by an outside force.....and an object in motion will stay in motion forever unless an outside force acts on it?
500
The things that should be included in an investigation in science (or experiment).
What is purpose/question, hypothesis, materials, procedure, data, and conclusion?
500
Two different versions of an inclined plane - one that is wrapped around a rod/core and one that helps cut or split things.