Ladders F9: Gravity

What keeps the moon in orbit around Earth?

• the pull of gravity between the moon and sun
• the pull of gravity of the sun and other masses in the solar system
• the balance between the moon's inertia and the Earth's gravity
• the balance between the Earth's inertia nd the moon's gravity

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS2-4

Which of the following can change if an object is moved from one planet to another?

• its density
• its mass
• its volume
• its weight

Tags

NGSS.MS-PS2-4

What is gravity?

• a force that attracts objects to each other
• a force that pushes objects away from each other
• the amount of matter in an object
• a scientific law about how bodies in space move

Tags

NGSS.MS-PS2-4

What is the way an object tends to resist any change in motion?

• force
• gravity
• inertia
• velocity

What is escape velocity?

• the velocity of something in orbit around a space body
• How fast an object falls to the surface of a planet
• the velocity an object needs to escape a space body's gravity
• the force needed to send a space probe to another planet

Tags

NGSS.MS-PS2-4

What is the shape of the orbit of most bodies in the solar system?

• a circle
• a square
• an ellipse
• a straight line

Tags

NGSS.MS-PS2-4

Earth's gravity pulls objects

• toward Earth's center
• away from Earth's surface
• toward Earth's poles
• away from Earth's poles

Tags

NGSS.HS-PS2-4

Between which two objects will the force of gravity be greatest?

• Earth and a pencil on Earth
• the moon and a school bus on the moon
• the moon and a pencil on the moon
• Earth and a school bus on Earth

Tags

NGSS.MS-PS2-4

What effect does gravity have on a falling object?

• It causes the object to accelerate
• It causes the object to slow down
• It causes the object to change direction
• It causes the object to stop moving

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Which of the following is stated in the law of universal gravitation?

• All objects in the universe move in an orbit around the sun.
• The force of gravity attracts all objects in the universe to one another.
• The force of gravity is the same between any two objects in the universe.
• The force of gravity between objects increases as the move farther apart.

Tags

NGSS.MS-PS2-4