Orbital Forces

What is the force that attracts objects towards each other?

• gravity

• electricity

• magnetism

• friction

Which force keeps satellites in orbit around the Earth?

• electromagnetic force

• centrifugal force

• magnetic force

• gravitational force

What is the term for the path followed by a satellite around a celestial body?

• trajectory

• route

• course

• orbit

What is the tendency of an object to resist changes in its motion?

• friction

• gravity

• acceleration

• inertia

Which of Newton's laws of motion is related to inertia?

• Second law

• First law

• Third law

• Fourth law

If an object is at rest, what can be said about its inertia?

• Variable

• Constant

• Zero

• Increasing

What happens to the inertia of an object as its mass increases?

• The inertia of an object remains the same.

• The inertia of an object increases.

• The inertia of an object decreases.

• The inertia of an object becomes zero.

Which of the following is an example of inertia?

• A car continuing to move forward after the brakes are applied and released

• A car turning left when the steering wheel is turned

• A car accelerating when the gas pedal is pressed

• A car slowing down when the brakes are applied

What is the unit of measurement for gravitational force?

• Newton (N)

• Second (s)

• Meter (m)

• Kilogram (kg)

What is the term for the amount of matter in an object?

• Weight

• Mass

• Volume

• Density