# Motion: Friction and Pulleys Quiz

This is an MCQ-based quiz on the topic of Motion: Friction and pulleys quiz.

This includes the following:-

• Direction of Friction

• Angle of Friction

• Normal Force

• Effect of Mass

• Gravity

Start Quiz

A aircraft starts from rest and its propeller produces a forward force of 30000 N. The mass of the aircraft is 35000 kg. If there is no friction then the initial acceleration of the aircraft is

1.16

1.33

0.85

2.36

A truck engine having mass of 4000 kg is pulling a lorry of mass 1000 kg along a level of path at an acceleration of 0.25 ms. The resistances are 8 N per 1000 kg for the truck engine and 10 N per 1000 kg for the lorry. What is the tension connecting two bar between the engine and the lorry?

200N

210N

300N

260N

Friction can reduce the efficiency of cars upto ____ percent.

20

100

50

40

If a book is moving towards the left, friction will act towards

Down

Up

Right

Left

It always opposes motion between two surfaces in contact

Mass

Gravity

Friction

Distance

The amount of friction depends on the weight of the objects pressing together.

True

False

How does friction affect speed?

Increase the speed

Decrease the speed

None of the above

A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate

Surface area

Air resistance

Descent velocity

Gravity

Sally sliding down the slide would be an example of which type of friction?

Rolling

Sliding

Fluid

Static

Oil between machine parts would be an example of which type of friction?

Static

Sliding

Fluid

Rolling

Quiz/Test Summary
Title: Motion: Friction and Pulleys Quiz
Questions: 10
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