distance traveled divided by time

The amount of space between two things

a push or a pull

 $\Sigma$  f  $=$  0

An object's speed and direction

the force of gravity on an object's mass

The measure of the amount of matter in an object

 $\Sigma$  f $\ne$  0

 $\Sigma$  f

What is the sum of all forces when an object is in equilibrium?

The force that pulls two objects toward each other.

The resistance to the motion of an object (direction opposite of the applied force)

A stretching force

Unit of measure for force

When dishes remain on a table when you yank away a tablecloth, you're illustrating

Nellie runs the length of a 100-yard football field in a time of 20 seconds. Her average running speed is

When a 10 kg block is simultaneously pushed eastward with 20N and westward with 20N, the net force on the block is (hint: draw it out if you are not sure)

The equilibrium rule,  $\Sigma$   f  = 0 applies to 

A girl pushes a cart to the left with a 100-N force. A boy pushes it to the right with a 50-N force. The net force exerted by the girls and the boy is

To change the motion of an object,

Jason sits on his big brothers shoulders. Big brother weighs 400 N and Jason weighs 150 N. The support force supplied by the floor must be

Place a book that weights 10 N on a table and the support force on the book is

When you walk an average speed of 4 m/s, in 5 seconds you will cover a distance of

If gravity between the Sun and Earth suddenly vanished, Earth would continue moving in