Vocabulary
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Questions
Question 2
100
Any piece of equipment that helps you get a certain job done quicker and more easily.
What is a tool?
100
Another force that works counter to inertia by changing the movement of an object in motion by slowing it down.
What is friction?
100
A device that makes work easier and which has few or no moving parts.
What is a simple machine?
100
To do work with less effort.
Why do people use tools?
100
A hockey stick, a broom, a shovel.
What are 3rd class levers?
200
A push or pull.
What is force?
200
The ability to do work.
What is energy?
200
The force a simple machine moves when effort is applied.
What is a load?
200
Running, jumping, falling, turning, and exercising are examples.
What is motion.
200
Scissors, oars, see-saw.
What is a 1st class lever?
300
Any change in an object's position.
What is motion?
300
A straight, slanted surface used to raise an object.
What is an inclined plane?
300
A measure of the steepness of a slope.
What is grade?
300
The common metric units for length, mass, and volume.
What are meter, gram, and liter?
300
Can opener, nail clippers, and nutcrackers.
What are 2nd class levers?
400
A force that prevents an object from indefinitely moving in a straight line.
What is gravity?
400
A beam or bar that changes the direction or the amount of force needed to accomplish the work.
What is a lever?
400
A metric unit used to measure force.
What is a newton?
400
The prefixes that can be used before the metric units?
What are milli, centi, deci, and kilo?
400
hi
bye
500
The resistance to a change in motion.
What is a inertia?
500
The result of a force applied to an object causing it to move.
What is work?
500
A metric unit used to measure work, equal to one newton meter.
What is a joule?
500
An object at rest tends to stay at rest and an oject in motion tends to stay in motion unless acted upon by an outside force.
What is Newton's 1st Law of Motion?
500
Is gravity a force?
yes
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