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Kuiz Fizik Tingkatan 5 Bab 1 Set 1

SELAMAT DATANG Kuiz Fizik Tingkatan 5 Bab 1 Set 1

KUIZ INI MENGANDUNGI 10 SOALAN

1.

Which of the following describes the property of 'elasticity'?

The ability of a material to resist scratching and abrasion

The ability of an object to return to its original shape and size after a deforming force is removed

The ability of an object to deform permanently under an applied force.

The ability of a material to be stretched into a thin wire

None

2.

According to Newton's Second Law, if a non-zero resultant force acts on an object, what is the state of the objects motion?

The object moves with a constant velocity

The object is accelerating

The object is at rest

The object moves with a decreasing velocity at a constant rate

None

3.

Two identical springs are arranged in parallel and a load is hung from them. How does the extension of this system compare to the extension of a single spring with the same load?

The extension is double

The extension is four times as much.

The extension is half

The extension is the same

None

4.

A coconut with a mass of 2.0 kg is falling with an acceleration of $9.0 m s^{-2}$ . Given that the gravitational acceleration $g = 9.81 m s^{-2}$ , calculate the magnitude of the air resistance acting on it.

18.0N

19.62N

37.62N

1.62N

None

5.

A block of weight 50 N is at rest on a smooth inclined plane at an angle of 40∘ to the horizontal. A frictional force, F R, prevents it from sliding down. What is the magnitude of this frictional force?

50cos40∘ N

50 N

50tan40∘ N

50sin40∘ N

None

6.

A free-body diagram for a book resting on a horizontal table would show which of the following forces acting on the book?

The weight of the book and the normal reaction force from the table

Only the normal reaction force from the table acting upwars

Only the weight of the book acting downwards

The weight of the book and the force the book exerts on the table

None

7.

The elastic potential energy stored in a spring is 0.4 J when it is extended by 5 cm. What is the force required to cause this extension?

2 N

16 N

0.08 N

8 N

None

8.

An object is subjected to two forces, 8 N and 6 N, acting in opposite directions along the same line. What is the magnitude and direction of the resultant force?

2 N in the direction of the 8 N force

14 N in the direction of the 8 N force

2 N in the direction of the 6 N force

10 N in the direction of the N force

None

9.

Hooke's Law states that the extension of a spring is directly proportional to the applied force. What is the condition under which this law is valid?

If the elastic limit is not exceeded

As long as the spring is made of metal

Only if the force applied is a pulling force

Under all conditions of stretching or compression

None

10.

The graph of force (F) versus extension (x) for a spring is plotted. What does the gradient of this graph represent?

The extension per unit force

The spring constant, k

The maximum force the spring can withstand

The work done in stretching the spring

None

1 out of 10

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