Newtons 1st Law of Motion - Inertia

What does friction do to a moving object?

• Speed it up

• Slows it down 

• Makes it rise 

• All of the above

How is velocity different from speed?

• Velocity is not at all different from speed. 

• Velocity is the direction an object moves in, and it has nothing to do with speed. 

• Velocity is when an object goes in reverse

• Velocity is speed and direction together. 

You are riding in the car with your grandfather, and he turns left. Why do you shift to the right?

• You have more inertia than the cars, so it takes longer for you to turn left. 

• It takes you a moment to catch up with the new velocity of the car

• The car continues in the same velocity, but you had a different inertia.

• You have been sitting at rest until the force of the turn sets you in motion . 

What does the second part of Newton's first law say about objects at rest?

• If they are heavy, they will stay at rest, but it they are light, they will move. 

• They will stay at rest unless an outside force makes them move. 

• They cannot move unless they have a lot of friction 

• They have more inertia than objects in motion. 

What is the relationship between heavy objects and inertia?

• Heavy object have less inertia

• Heavy objects have more inertia 

• Only heavy objects have inertia 

• Heavy objects have no inertia 

While you’re ice-skating with your friends, you push off from one end of the rink and slide forward. Based on Newton’s first law of motion, what is true?

• You will continue to slide across the ice until a force makes you stop or change direction. 

• The force of gravity will make you keep your velocity until your friends make you stop. 

• The size of you ice skates will determine how quickly or slowly you travel across the ice. 

• You will lose your balance and fall over before you reach the middle of the ice rink. 

Your friend kicks a soccer ball, and it stops a few feet from you. What needs to happen to it in order for it to return to your friend?

• Inertia has to be applied to the ball

• Friction has to be applied to the ball 

• Force has to be applied to the ball

• Speed has to be applied to the ball