Planetary Orbit

Which one of Newton's laws is shown

• 3rd law

• 2nd law

• 1st law

Which one of Newton's laws are displayed

• 2nd law

• 1st law

• 3rd law

This is Newton's 3rd law

• True

• False

An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe

• 2nd law

• 1st law

• 3rd law

If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?

• 3rd law

• 1st law

• 2nd law

What force slows objects down and keeps them from moving?

• Acceleration

• Gravity

• Friction

• Net Force

When there is a change in motion?

• When forces are balanced

• When the forces are unbalanced

• Whe forces are equal

• Never

Suppose that this person left go of the chain. As soon as he releases the chain the balls inertia would....

• make the ball immediately stop and fall straight to the ground.

• keep the ball moving in a circle around him.

• result in the ball flying off in a straight line away from the person.

• either a, b, or c -- depending on whether the person continues to push it

Planets orbit the Sun in a shape called a(n)

• circle

• ellipse

• focus

• perihelion

What is eccentricity?

• a measurement of how elliptical an orbit is.

• a measurement of the distance between the planet and the sun

• a measurement of how long the planet takes to rotate around the sun

• none of these