Unit 5 Review Mrs. Buffington

Which term means “to change the speed or direction” of an object? A. Velocity B. speed C. acceleration D. gravity

Which term means how quickly something is traveling? A. Velocity B. speed C. acceleration D. gravity

A man was making a trip and miscalculated how much gas he had A man was making a trip and miscalculated how much gas he had. Unfortunately, he had to push his car off the road. As he was pushing his car, which scenario would be true? A. a large acceleration would be created by the large force on the car B. there was a large acceleration created by the small force on the car C. he created a small acceleration when he used a larger force on the car D. a small acceleration would be created by the small force on the car

-Acceleration- A measure of the change in velocity (speed & direction) during a period of time.

Which of these activities could you calculate speed on? I. mile run II. Rope climb III. 25 sit ups IV. Jumping jacks V. pull ups

What is the difference between the velocity and the speed of an object? A. Velocity is the change in distance over time, while speed is the change in velocity over time B. velocity has no direction associated with it, while speed has a specific direction. C. velocity has a direction associated with it, while speed has no specific direction. D. velocity is the change in speed over time, while speed is the change in distance over time.

A teacher points to an apple sitting on the desk A teacher points to an apple sitting on the desk. Which conclusion best explains why the apple is not moving? A. she is not a magician and has no special powers B. there are many forces acting on the apple, but mostly it is its inertia that keeps it on the desk. C. gravity is pulling on the apple. It is only the weight of the apple that keeps it from moving off the desk D. there are two forces acting on the apple. The desk is pushing up and gravity is pulling down. The balance of these forces keeps the apple from moving.

Which of the following illustrates an unbalanced forced being applied to an object?

When an object is acted on by unbalanced forces, the object will always…. A. continue in the same direction B. continue at the same speed C. come to a stop D. accelerate

Jack pushes a box with a force of 12 N to the right and jill pushes the same box from the opposite side with a force of 7 N to the left. What will be the result? A. it will move to the right with a 5 N force B. It will move to the left with a 5 N force C. it will not move at all D. It will move to the right with a 12 N force 12 N 7 N

A 4000 kg truck and a 1000 kg car are racing A 4000 kg truck and a 1000 kg car are racing. The same amount of force is applied to each of them. What will happen? A. the truck will accelerate twice as fast B. the car will accelerate four times as fast C. the car will accelerate twice as fast D. the truck will accelerate four times as fast

to calculate speed you have to take distance divided by time to calculate speed you have to take distance divided by time. What is the speed of a car that goes 500 miles in 5 hours? A. 50 mph B. 75 mph C. 90 mph D. 100 mph