The Science Behind Sports

What does gravity do to your body when you walk?

• Pushes you up

• Pulls you toward the Earth

• Makes you float

• Pushes you sideways

What would happen without gravity?

• Everything would float into space

• Everything would stay in place

• Everything would move faster

• Everything would become heavier

What do scientists understand about gravity?

• It is not important

• It is a major force in the universe

• It only affects small objects

• It is weaker than other forces

What do scientists know about the laws of gravity?

• They are the same for all objects

• They are different for each object

• They only apply to Earth

• They change over time

What is the clue to the force of gravity in an object?

• The amount of space it takes up

• The amount of matter, or mass, in the object

• The color of the object

• The shape of the object

What do Newton's theories of gravity apply to?

• Only objects on Earth

• Only objects in space

• All matter in the universe

• Only living organisms

What is the main function of muscles in your body?

• To digest food

• To move your body

• To think

• To breathe

What is the effect of a high center of gravity on an object?

• It makes the object stable

• It makes the object easy to tip over

• It makes the object heavier

• It makes the object lighter

What is the role of the center of gravity in balancing a yardstick on one finger?

• It makes the yardstick heavier

• It makes the yardstick lighter

• It helps balance the yardstick

• It makes the yardstick spin

What is the relationship between the center of gravity and the stability of an object?

• Higher center of gravity means more stability

• Lower center of gravity means less stability

• Higher center of gravity means less stability

• Center of gravity does not affect stability