Physics Questions/IPC

What is the law of universal gravitation?

• It states that every point mass attracts every other point mass by a force acting along the line intersecting both points.

• It states that objects in motion tend to stay in motion unless acted upon by an external force.

• It states that energy cannot be created or destroyed, only transformed from one form to another.

• It states that for every action, there is an equal and opposite reaction.

What is the formula for the law of universal gravitation?

• F = G * (m1 * m2) / r^2

• F = m * a

• E = mc^2

• V = IR

Which of the following are Newton’s Laws of Motion?

• Law of Inertia

• Law of Acceleration

• Law of Action and Reaction

• Law of Universal Gravitation

What is the second law of motion equation?

• F = ma

• E = mc^2

• V = IR

• P = IV

What is the gravitational force exerted on an object called?

• Weight

• Mass

• Density

• Volume

The opposing sliding motion of two surfaces that are in contact is called.

• Friction

• Gravity

• Magnetism

• Inertia

When an object moves in a circular path, the net force is called_____

• centripetal force

• gravitational force

• frictional force

• magnetic force

The gravitational force exerted on an object is called?

• Weight

• Mass

• Density

• Volume

Which explains why astronauts seem weightless in orbit?

• They are too far from Earth's gravity.

• They are in free fall around Earth.

• There is no gravity in space.

• They are moving at a constant speed.

Which term best describes the forces on an object with a net force of zero?

• Balanced

• Unbalanced

• Dynamic

• Static