Lesson Review

According to Newton's First Law of Motion, an object at rest will remain at rest unless acted upon by a?

• Force

• Acceleration

• Gravity

• Velocity

Which of the following statements best describes Newton's First Law of Motion?

• An object in motion will remain in motion at a constant velocity unless acted upon by a force.

• The acceleration of an object is directly proportional to the net force acting on the object

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

  
  

• An object at rest will remain at rest unless acted upon by a force.

  
  

Which of the following examples best demonstrates Newton's First Law of Motion?

• A tennis ball being hit by a racket and flying through the air.

  
  

• A book sliding off a table and falling to the ground.

  
  

• A car accelerating from a stop sign.

  
  

• A person jumping off a diving board and into a pool.

  
  

  
  

According to Newton's First Law of Motion, which of the following is true for an object in motion?

• The object will continue moving in a straight line at a constant speed

• The object will slow down and eventually come to a stop.

  
  

• The object will change direction and continue moving at a constant speed.

  
  

• The object will speed up and eventually reach maximum velocity.

  
  

Which of the following is an example of an external force acting upon an object?

• Friction between a book and a table

• Gravity pulling an object down to the ground

• The force of air resistance on a moving car

• The force of a person pushing a shopping cart

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Which of the following best describes the concept of inertia?

• The tendency of an object to remain in motion

  
  

• The tendency of an object to resist a change in motion

  
  

• The force required to change an object's motion

  
  

• The velocity of an object in motion

  
  

According to Newton's First Law of Motion, what happens to an object if the net force acting on it is zero?

• The object moves with a constant velocity

  
  

• The object accelerates in the direction of the force

  
  

• The object comes to a stop

  
  

• The object moves in a circle

  
  

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

• A person pushing a car up a hill

  
  

• A skydiver falling through the air

  
  

• A rocket launching into space

  
  

• A ball bouncing off a wall

  
  

According to Newton's First Law of Motion, which of the following is true about an object at rest?

• The object will remain at rest forever

  
  

• The object will eventually start moving on its own

  
  

• The object can only be moved by a force

  
  

• The object will move in a straight line at a constant velocity

  
  

Which of the following is an example of an object in motion that is experiencing no external forces?

• A car driving down a straight road

  
  

• A ball rolling down a hill

  
  

• A boat sailing on a calm lake

  
  

• A person walking across a room