Kuiz Fizik Tingkatan 5 Bab 1 Set 1

SELAMAT DATANG Kuiz Fizik Tingkatan 5 Bab 1 Set 1

KUIZ INI MENGANDUNGI 10 SOALAN

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 four times as much.

The extension is double

The extension is the same

The extension is half

None

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.

37.62N

18.0N

19.62N

1.62N

None

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

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

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

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

None

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

The spring constant, k

The work done in stretching the spring

The extension per unit force

The maximum force the spring can withstand

None

Which of the following factors does NOT affect the spring constant of a coil spring?

The original length of the spring

The material the spring is made from

The thickness of the spring’s wire

The gravitational field strength where the spring is used

None

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 weight of the book acting downwards

Only the normal reaction force from the table acting upwars

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

None

A car is moving at a constant velocity of 20 m s−1. The engine provides a forward thrust of 1500 N. What is the magnitude of the total resistive force (air resistance and friction) acting on the car?

Less than 1500 N

1500 N

0 N

Greater than 1500 N

None

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?

As long as the spring is made of metal

If the elastic limit is not exceeded

Under all conditions of stretching or compression

Only if the force applied is a pulling force

None

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?

10 N in the direction of the N force

14 N in the direction of the 8 N force

2 N in the direction of the 8 N force

2 N in the direction of the 6 N force

None

10.

What is the primary condition for an object to be in a state of equilibrium of forces?

The forces acting on it are all equal in magnitude

The resultant force acting on the object is zero

There are no forces acting on the object

The object must be stationary

None

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