Kuiz Fizik Tingkatan 5 Bab 1 Set 1

SELAMAT DATANG Kuiz Fizik Tingkatan 5 Bab 1 Set 1

KUIZ INI MENGANDUNGI 10 SOALAN

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?

0 N

Less than 1500 N

1500 N

Greater than 1500 N

None

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?

50tan40∘ N

50 N

50cos40∘ N

50sin40∘ N

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

19.62N

18.0N

1.62N

None

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

Only the normal reaction force from the table acting upwars

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

Only the weight of the book acting downwards

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

None

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 is at rest

The object is accelerating

The object moves with a decreasing velocity at a constant rate

The object moves with a constant velocity

None

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

The material the spring is made from

The thickness of the spring’s wire

The original length of the spring

The gravitational field strength where the spring is used

None

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

0.08 N

8 N

16 N

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 a material to resist scratching and abrasion

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

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

None

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

The object must be stationary

There are no forces acting on the object

The forces acting on it are all equal in magnitude

The resultant force acting on the object is zero

None

10.

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

Only if the force applied is a pulling force

Under all conditions of stretching or compression

As long as the spring is made of metal

None

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