Kuiz Fizik Tingkatan 5 Bab 1 Set 1

SELAMAT DATANG Kuiz Fizik Tingkatan 5 Bab 1 Set 1

KUIZ INI MENGANDUNGI 10 SOALAN

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?

14 N in the direction of the 8 N force

10 N in the direction of the N force

2 N in the direction of the 8 N force

2 N in the direction of the 6 N force

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?

Greater than 1500 N

0 N

Less than 1500 N

1500 N

None

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

The ability of a material to resist scratching and abrasion

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

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.

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?

50cos40∘ N

50tan40∘ N

50 N

50sin40∘ N

None

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

The object must be stationary

The resultant force acting on the object is zero

The forces acting on it are all equal in magnitude

There are no forces acting on the object

None

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

The maximum force the spring can withstand

The work done in stretching the spring

The spring constant, k

The extension per unit force

None

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 the same

The extension is double

The extension is four times as much.

The extension is half

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?

16 N

2 N

0.08 N

8 N

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 accelerating

The object is at rest

The object moves with a decreasing velocity at a constant rate

The object moves with a constant velocity

None

10.

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 gravitational field strength where the spring is used

The original length of the spring

None

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