Show:
1
2
3
4
5
100
a curved shape
What is an arch?
100
The force that pulls things toward the earth
What is gravity?
100
What is Force?
a push or pull
100
What is a zoomer?
a toy made from a plastic disc and a string
100
What is a slope?
a surface that is higher on one end
200
What is an Axis?
a straight line around which something rotates
200
What is an axle?
a rod or shaft to which wheels can be attached
200
What is a Balance point?
the place on which an object balances
200
What is balanced?
when something is in a stable position
200
What is counter balance?
to place weights on an object to keep it in a stable postion
300
What is Motion?
the act of moving
300
What is an object?
anything that can be seen or touched, a thing
300
What is a mobile?
a system of balanced beams and objects
300
What is a ramp?
an object that has a slope
300
What is to roll
when a wheel goes around on its edge
400
What is to rotate?
to turn in a cirlce of lot of times, to spin
400
What is a stable position?
a position of not falling over
400
What is to twirl?
to spin in the air
400
What is a sphere?
an object that is round and rolls in all directions
400
What is vibration?
a fast back and forth motion that makes a sound
500
What is to twist?
to wind or turn something around
500
What is a wheel or a disc?
an object that is a circle in one direction only and can fall over
500
What is a system?
a group of things or parts that form a whole
500
What is unstable?
when something is unsteady and falls over
500
What is a counterweight?
something that helps to balance an object