hammer, crowbar, bottle-opener, shovel, broom, and fishing pole
What is a lever?
100
The change in an object's location over a certain amount of time.
What is motion?
100
The motion of an object around a central point.
What is angular motion?
100
Force
What is the push or pull of one object on another object.
200
A machine that turns the rotation of a wheel into a force on an axle.
What is a wheel and axle?
200
pencil sharpener, rolling pin, doorknob, eggbeater, electric fan, bicycle wheel, gears in a clock, and helicopter rotor
What is a wheel and axle?
200
The distance (speed) that an object travels over a certain amount of time.
What is velocity.
200
Rotational Motion
What is the motion of an object in a complete circle?
200
The force that resists the motion of one object against another.
What is friction?
300
A wheel with a groove that makes it easier to lift objects using a rope.
What is a pulley?
300
clothesline, rock climbing, well, flagpole, boat winch, fishing reel
What is pulley?
300
Linear Motion
What is the motion of an object along a straight line?
300
The back-and-forth motion of an object from a central point.
What is periodic motion?
300
Gravity
What is the force pulling together all objects in the universe?
400
A slanted surface that makes it easier to lift ojects.
What is an inclined plane?
400
pin, knife, razor blade, axe, tooth, nail, chisel, and doorstop
What is a wedge?
400
Physicist
What is a scientist who studies motion?
400
Ferris Wheel
What is rotational motion?
400
Work
What is using a force on an object to make it move?
500
A V-shaped solid made from back-to-back inclined planes that can be pushed between two objects to separate them.
What is a wedge?
500
ramps, rollercoaster, ladder, slide
What is an inclined plane?
500
Both are linear motions. However, horizontal motion of a car is along a straight line that goes side to side. The vertical motion of a rocket is also along a straight line that goes up and down.
What is the difference between vertical and horizontal motion?
500
a door opening and closing
What is periodic motion?
500
Power
What is the amount of work done over a certain amount of time?