Free Printable test 1 class 9 A and B

Worksheets

test 1 class 9 A and B

Total questions: 20

Worksheet time: 15mins

Name

Class

Date

Newton's second law states that F = m x a (Force is mass times acceleration). Which example would have the GREATEST acceleration?

a 10 kg ball thrown with a 50 Newton force

a 1 kg ball thrown with a 0.5 Newton force

a 50 kg student launched by a 100 Newton catapult

a 500 kg car accelerated by 1000 Newtons from the engine

The rate of change of an object's velocity is called _______.

energy

speed

force

acceleration

What is the unit measure of Force?

Meters/second² (m/s²)

Joules (J)

Meters (m)

Newtons (N)

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

first

second

third

fourth

Force and acceleration are _______________ proportional

Inversely

Directly

Not

Almost

You are moving a dresser that has a mass of 36kg. Its acceleration is 0.5 m/s². What is the force being applied?

72 N

35.5 N

1.8 N

18 N

the law of interia applies to

a. Objects at rest

b. Moving objects

c. Both moving A and B

This motion graph represents:

constant speed

acceleration

body at rest

slowing down

A stopped car begins moving and reaches a speed of 25m/s in 5 seconds. What is its acceleration?

+25m/s²

-0m/s²

+5m/s²

5m/s

10.

If you travel 7.5 km and walk for 1.5 h, what is your average speed?

5 km/h

11.25 km/h

0.2 km/h

11.

Which of the following is a unit for acceleration?

km/s

m/s²

mi/hr

12.

What is the velocity of an object that travels 20 meters in 4 seconds North?

80 m/s North

5 m/s

5 m/s North

24 m/s

13.

What is this?

"This airplane is traveling at 500 mph, West"

Speed

Velocity

Acceleration

14.

A value that only has magnitude (a number)

Scalar

Vector

Speed

Velocity

15.

Of the following, which is a vector?

Mass

Time

Speed

Velocity

16.

A drag racer accelerated from 0 m/s to 200 m/s in 5 s. What was the acceleration?

0 m/s

40 m/s²

-40 m/s²

40 m/s

17.

What is inertia?

the force that opposes motion

the force of attraction between 2 objects

an object's tendency to stay in motion or to stay at rest

a change in an object's speed and/or direction

18.

Which type of force(s) will cause a change in an object's motion?

gravity

zero net force

balanced forces

unbalanced forces

19.

Seat belt is needed for safety purpose in a vehicle. What is the use of the seat belt?

To increase the effect of inertia

To reduce the effect of inertia

To increase the effect of momentum

To decrease the effect of momentum

20.

The picture is an example of Newton's...

1st Law

2nd Law

3rd Law

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test 1 class 9 A and B

Total questions: 20

Worksheet time: 15mins

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