9k Speeding Up Multiple Choice Test

Chapter 9

Multiple choice test

Chapter

9 Speeding up

SoW ref

9K Speeding up

Name

Class

Teacher

There is only one correct answer to each question. Tick () the box next to the answer that you think is right. 1

What is the way we calculate speed? A speed = distance moved x time taken B speed = distance moved time taken C speed = time taken x distanced moved D speed = time taken distance moved

2

Which of the following is not a unit of speed? A centimetres per thousand years B kilometres per hour C kilograms per second D metres per second

3

What is the speed of this car?

A 20 km per hour C 80 km per hour 4

B 40 km per hour D 100 km per hour

Here are the results of two good races in the school sports: 100 m Boys – Winner: J Mebo, 10 sec 1500 m Girls – Winner: H Chai, 4 min 10 sec (250 sec) Which line on the table gives their winning speeds correctly? A B C D

A

100 m race 6 m/s 10 m/s 10 m/s 100 m/s

B

1500 m race 6 m/s 6 m/s 25 m/s 25 m/s

C

D

Hodder Science Assessment Pack © 2003 Hodder & Stoughton Educational

Chapter 9 5

Multiple choice test

What is the correct name for the sensor used in this experiment?

A proximity sensor C thermistor

B light gate D AND gate

6

How do parachutes make people fall through the air more slowly? A catch rising hot air B decrease the weight of the person C have a large area so exert a low pressure D increase air resistance at low speeds

7

How do you calculate the acceleration of an object? A force applied area it is applied to B force applied x distance moved by the object C change in speed time taken for that change D distance travelled time taken

8

The acceleration of the car is:

A 5 m/s C 12 m/s

B 5 m/s2 D 12 m/s2

Hodder Science Assessment Pack © 2003 Hodder & Stoughton Educational

Chapter 9 9

Multiple choice test

Which answer best describes the movement of the tug of war match in the drawing?

A B C D

moving steadily to the left accelerating to the left moving steadily to the right accelerating to the right

Questions 10–12 refer to the following distance/time graphs of the movements of a motor car.

10 Which graph represents a car accelerating? A B C D 11 What is the average speed of the car in Graph B? A 5 m/s B 50 m/s C 100 m/s D 500 m/s 12 Which graph shows a car going quickly across tarmac and then onto mud? A B C D

Hodder Science Assessment Pack © 2003 Hodder & Stoughton Educational