Physics Review I

What effect does a rough surface have on a box that is being pulled along the sidewalk?

• It would reduce the amount of work that is performed.

• It would oppose (go against) the force that is being applied to the box.

• It would decrease the resistance between the forces that are pulling the box.

• It would help reduce the force of gravity when the box is pulled.

Tom is sitting in his parked car. The car next to him starts to back up. If Tom is using the car next to him as a reference point, what direction does his car appear to be moving?

• back

• forward

• left

• right

Mike was riding his bike at an average speed of 4 miles per hour. After 3 hours, how far had Mike traveled?

• 12 miles

• 1 mile

• 4 miles

• 20 miles

Tags

CCSS.3.OA.A.3

A soccer ball is rolling across the yard and eventually comes to a stop. What force caused the ball to slow down and eventually stop?

• friction

• gravity

• magnetic

• inertia

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

The force of gravity acting on an object is the object's ______.

• mass
• matter
• weight 
• friction 

A person would weigh less on on the Moon than on the Earth because . . .

• Moon has more mass, and therefore more gravity
• Moon has less mass, and therefore more gravity
• Moon has more mass, and therefore less gravity
• Moon has less mass and therefore less gravity

What does friction produce?

• light
• sound
• heat
• gravity

Which of the following has the most inertia?

• A parked train
• A moving car
• A bike on the sidewalk
• A penny on the roof

The force of gravity pulling down on an object is called

• mass
• weight 
• physical change
• resistance