Physics Quiz

According to Newton's First Law, what is inertia?

• The rate at which an object's velocity changes

• The tendency of an object to resist changes in its state of motion

• A force that comes from outside the object

• The amount of matter in an object

What is an external force?

• A force that comes from outside the object and changes its state of motion

• The amount of matter in an object

• The rate at which an object's velocity changes

• A push or pull acting upon an object

Which of the following is an example of Newton's First Law?

• A car accelerating when the gas pedal is pressed

• A book on a table remains at rest until someone pushes it

• A ball rolling down a hill

• A rocket launching into space

What does Newton's Second Law state about force?

• For every action, there is an equal and opposite reaction

• The tendency of an object to resist changes in its state of motion

• A push or pull acting upon an object

• The change in velocity per unit time

According to Newton's Third Law, what happens when a baseball bat hits a ball?

• The ball exerts an equal and opposite force on the bat

• The ball stops moving

• The bat absorbs all the force

• The ball changes direction

What is the formula for average acceleration?

• a = (v - v0) / t

• a = (v + v0) / t

• a = (v - v0) * t

• a = (v + v0) * t

Calculate the time required for a car to accelerate from 10 m/s to 15 m/s at a rate of 1.4 m/s².

• 3.57 s

• 4.29 s

• 2.86 s

• 5.00 s

What is the definition of velocity?

• The speed of an object in a specific direction.

• The rate at which an object covers distance.

• The total path length traveled by an object.

• The change in position of an object.

According to Newton's First Law (Inertia), what will a lazy object do?

• It will not move unless you make it.

• It will move faster.

• It will change direction.

• It will accelerate.

What does Newton's Second Law (F=ma) imply?

• More mass means more force is needed to get the same acceleration.

• Less mass means more force is needed to get the same acceleration.

• More mass means less force is needed to get the same acceleration.

• Mass does not affect the force needed for acceleration.