Physics Quiz on Force and Acceleration

What happens when a force is applied to an object?

• The object changes its motion or shape

• The object remains stationary

What did Newton's ideas become the basis for?

• Chemistry

• Modern physics

Which of the following best describes Sir Isaac Newton?

• A well-known explorer

• One of the most influential scientists of all time

What are Newton's three Laws of Motion used to describe?

• The growth of plants

• The movement of objects and celestial bodies

What is the First Law of Motion?

• An object in motion stays in motion unless acted upon by an external force.

• An object will change its speed if a force is applied.

What is the relationship between force and acceleration if mass is constant?

• More force more acceleration

• More force less acceleration

What is the Second Law of Motion?

• Force equals mass times acceleration.

• An object at rest stays at rest.

What is the result of the reaction force in the rocket example?

• The rocket moves downward.

• The rocket moves upward.

What does the Third Law of Motion explain about forces?

• Forces are always equal.

• Forces always come in pairs.

What is required for an object to begin moving from rest?

• A decrease in mass

• An unbalanced force