Intro to Gravity

Gravity is a type of...

• superpower

• dark matter

• force

• cheese

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The force that pulls things towards earth

• Speed

• Gravity

• Normal

• Air resistance

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The force of attraction between all matter.

• inertia

• friction

• net force

• gravity

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According to Galileo's observations gravity pulls on all objects equally regardless of _____________

• size

• shape

• mass

• time of day

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When an object is in free fall it is said to be ___________

• moving at terminal velocity

• weightless

• in microgravity

• all of the above

There is a gravitational force between you and your desk. This gravitational force is very small because _____

• the masses are tiny compared to Earth's mass

• it doesn't need to be large

• the distance between the objects is small

• it is a noncontact force

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Which of the following is most closely related to gravity?

• distance

• mass

• weight

• speed

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If the mass of one of two spheres increases, how does it affect the gravity between the two spheres?

• the gravity increases

• the gravity decreases

• the gravity fluctuates

• the gravity is not affected

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This diagram shows three models that represent the gravitational force, F, between objects.

Which model is displaying the most gravitational force of attraction?

• Model 1

• Model 2

• Model 3

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This diagram shows three models that represent the gravitational force, F, between objects.

What do the arrows represent in the models?

• the mass of the objects

• the direction of the force

• the direction the object will be pushed

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