1.
The power of a gravitational force depends on ___.
2.
Gravity increases according to ___.
3.
____ forces attract certain metals.
4.
Opposites attract with ___.
5.
____ are pushes or pulls that can cause an object to move, stop, or change direction.
6.
___ is an example of a mechanical force.
7.
How many simple machine types are there?
8.
A lever is a bar that pivots on a point called a ___.
9.
A jar lid is an example of a ___.
10.
An axe or a blade are examples of a ____.
