It pulls an object to the center of the earth the same way it pull a dropped object.

A force that pulls objects toward each other.

This force is why a sky diver uses a parachute.

What you must know to determine a object's momentum

A device used to measure atmospheric pressure.

When the only force acting on a falling object is gravity.

The force of gravity on a person or object at the surface of a planet.

The velocity of a parked train.

A "quantity of motion".

This man's Principle states: that the buoyant force acting on a submerged object is equal to the weight of the fluid the object displaces.

This is why an oak leaf flutters to the ground and an acorns drops straight down.

This is why you weigh less on the moon than on Earth.

Cars traveling at faster speeds have more momentum and are more difficult to stop than cars traveling at slower speeds.

The formula for momentum.

Force divided by Area.

When an object continues to fall but its velocity remains constant.

The amount of matter in an object.

When you caught the ball, you (with the ball in your hand) would move in the direction of the ball's initial motion.

The Law that states: In the absence of outside forces, the total momentum of objects that interact does not change.

This man's Principle is why the ball stayed up with a leaf blower.

A larger ____________ is why a crumpled piece of paper falls faster than a flat piece dropped at the same time.

For a spacecraft traveling toward Mars, Earth's gravitational pull ______________, as the spacecrafts distance from Earth increases.

The best teacher in the whole world for playing this game with you.

This is a characteristic of a moving object equal to the product of its mass and its velocity.

The difference is pressure between the top and bottom of the tube draws the fluid upward.