Gravity and Motion

The objects shown in the following diagrams have different masses and are different distances apart. Which diagram shows the two objects that have the greatest gravitational force between them?

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Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

In order for a space shuttle to leave Earth, it must produce a great amount of thrust. Its rocket boosters create this thrusting force by burning great amounts of fuel. However, once in space, the shuttle needs very little fuel. It circles Earth while gravity pulls it toward Earth. What term describes the motion of the shuttle around Earth?

• orbit

• gravity

• inertia

• weight

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

An object at rest will remain at rest and an object in constant motion will remain in motion unless acted upon by an unbalanced force. This is Newton's ____ Law.

• 1

• 2

• 3

• 4

When an unbalanced force acts on an object , the object moves with accelerated motion. This statement is...

• true

• false

Tags

NGSS.MS-PS2-2

Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the force. This is an example of Newton's ___ Law.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS2-1

•All forces are vectors. This means they have both a size and a direction.

• true

• false

The strength of the force of gravity between two objects depends on which two factors?

• The mass of the objects and the distance between objects

• The weight of the objects and the mass of the objects

• The weight of the objects and the distance between the objects

• The height of the objects and the mass of the objects

Tags

NGSS.MS-PS2-4

____________ states that every object in the universe attracts every other object.

• Newton's Second Law of Motion

• Newton's First Law of Motion

• Newton's Law of Planetary Gravitation

• Newton's Law of Universal Gravitation

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The measure of the force of gravity on an object is called ...

• Mass

• Weight

• Force

• Inertia

Tags

NGSS.MS-PS2-4

Earth's gravity pulls the moon inward.

• True

• False

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2