Gravity and Motion in the Solar System

According to the passage, what inspired Isaac Newton to question why things fall the way they do?

• An apple falling from a tree

• A conversation with a friend

• Observing the moon

• Reading a scientific book

Isaac Newton concluded that the cause of objects falling is due to:

• Magnetism

• Gravity

• Friction

• Air resistance

Tags

NGSS.MS-PS2-4

According to Newton, what governs the motion of all objects in the solar system?

• The law of universal gravitation

• The theory of relativity

• Quantum mechanics

• Kepler's laws of planetary motion

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

What is the effect of gravity on astronauts when they leave Earth's surface?

• They experience increased gravity.

• They become weightless.

• Their mass increases.

• They feel stronger gravitational pull.

What are the two factors that the force of gravity between two objects depends on?

• The masses of the objects and the distance between them

• The volume of the objects and the distance between them

• The temperature of the objects and the distance between them

• The color of the objects and the distance between them

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

The force of gravity is directly proportional to the mass of the objects.

• True

• False

Tags

NGSS.MS-PS2-4

As the distance between two objects increases, what happens to the force of gravity between them?

• The force of gravity decreases.

• The force of gravity increases.

• The force of gravity remains the same.

• The force of gravity becomes zero.

An astronaut weighs more on Earth than on the moon because Earth has greater mass and exerts a greater gravitational force.

• True

• False

Tags

NGSS.MS-PS2-4

In common usage, govern often refers to having power over something by a political person or group. With a partner, write a sentence that illustrates what govern means scientifically in terms of gravity and orbital motion.

• Govern in scientific terms means to control the direction of a spacecraft.

• Govern in scientific terms means to influence the path of an object in space due to gravitational forces.

• Govern in scientific terms means to regulate the speed of a moving vehicle.

• Govern in scientific terms means to manage the temperature of a planet.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

NGSS.MS-ESS1-1

What is the tendency of an object in motion to resist a change in motion unless acted upon by a force?

• Gravity

• Inertia

• Friction

• Momentum