IPS II-Chapter 11 Review

1.A passenger in the rear seat of a car moving at a steady speed is at rest relative to

• the side of the road.

• a pedestrian on the corner ahead.

• the front seat of the car

• the wheels of the car

2.Which distance can be most accurately measured with a ruler?

• the length of a river

• the width of a book

• the distance between two cities

• the size of an object under a microscope

3.A person drives north 6 blocks, then turns west, and drives 6 blocks. T

he driver then turns south and drives 6 blocks.

How could the driver have made the distance shorter while maintaining the same displacement?

• by driving west 6 blocks from the starting point

• by driving north 4 block and west 7 blocks

• by driving south 6 blocks from the starting point

• by driving back to the starting point by the same route

4.Displacement vectors of 4 km south, 2 km north, 5 km south, and 5 km north

combine to a total displacement of

• 16 km north

• 11 km west

• 6 km south

• 2 km south

5.Speed is the ratio of the distance an object moves to

• the amount of time needed to travel the distance.

• the direction the object moves.

• the displacement of the object.

• the motion of the object.

6.A car traveled 60 km in 2 hours, 84 km in the next 1 hour,

and then 68 km in 2 hours before reaching its destination.

What was the car’s average speed?

• 212 km/h

• 42 km/h

• 148 km/h

• 1060 km/h

7.A horizontal line on a distance-time graph means the object is

• moving at a constant speed

• moving faster.

• slowing down.

• at rest.

8.A distance-time graph indicates that an object moves 100 m in 4 s and then remains at rest for 6 s.

What is the average speed of the object?

• 50 m/s

• 25 m/s

• 10 m/s

• 100 m/s

9.Vector addition is used when motion involves

• more than one direction

• more than one velocity.

• more than one speed.

• all of the above

10.Which example identifies a change in motion that produces acceleration?

• a speed skater moving at a constant speed on a straight track

• a ball moving at a constant speed around a circular track

• a particle moving in a vacuum at constant velocity

• a vehicle moving down the street at a steady speed