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forces in equilibrium 2

Total questions: 35

Worksheet time: 53mins

Name
Class
Date
1.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
2.

Two forces on an object are in the same direction. How do we calculate the resultant force?

a)

Take away one from the other

b)

Multiply them

c)

Divide one by the other

d)

Add them together

3.

How will this object move?

a)

It won't move.

b)

It will move to the right.

c)

It will move to the left.

d)

It will move up.

4.

What is the resultant force?

a)

40 N, Left

b)

0 N, Balanced

c)

400 N, Right

d)

40 N, Right

5.

What is the name of force F2?

a)

Drag

b)

Thrust

c)

Buoyancy

d)

water resistance

6.

Which situation experiences forces in equilibrium?

a)

a car moving down a hill with increasing velocity

b)

a durian falls from a tree

c)

a rocket accelerates upward

d)

a ship floating above the sea surface

7.

Diagram shows a stationary trolley of mass 1.4 kg on an inclined plane.

What is the magnitude of the force, F ?

a)

7.0 N

b)

12.7 N

c)

16.2 N

d)

28.0 N

8.

Diagram shows a boy is pulling a 50 kg box along a rough floor.

Which combination of forces F1 and F2 will produce an acceleration of 2 m s-2?

a)

F1 : 100N F2 : 200N

b)

F1 : 200N F2 : 400N

c)

F1 : 300N F2 : 600N

d)

F1 : 400N F2 : 800N

9.

Diagram shows a man is pulling a sledge with a rope.

Which of the following will move the sledge forward with the maximum acceleration?

a)

Small angle , Small force

b)

Small angle , Big force

c)

Big angle , Small force

d)

Big angle , Big force

10.

Diagram shows Jamal drives a bike at a constant speed of 25 ms-1. The two forces resisting motion are air friction of 30 N and frictional force of 80 N.

Determine the thrust force of the engine.

a)

50 N

b)

55 N

c)

85 N

d)

110 N

11.

The weight of the hanging object is supported by

a)

the normal force from the ground

b)

the y-component of tension

c)

two y-components of tension

d)

two normal forces from the ground

12.

If an object is in equilibrium, this means:

a)

The forces acting on it are unbalanced.

b)

The forces acting on it are balanced.

c)

There are no forces acting on the object.

13.

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

a)

20 m/s2

b)

0.5 m/s2

c)

2 m/s2

d)

120 N

14.

If an object was accelerating at 5 m/s2, and a force of 10 newtons was required to accelerate it, what was the object's mass?

a)

50 kg

b)

2 kg

c)

0.5 kg

d)

5 kg

15.

A 20 N force pull a box at 35o from the horizontal axis. What is the x-component of the force?


20 N daya tarik pada 35o daripada paksi mendatar. Apakah komponen-x daya tersebut?

a)

16.38 N

b)

11.47 N

c)

14.00 N

16.

A 15 N force pull a box at 35o from the horizontal axis. What is the y-component of the force?


15 N daya tarik pada 35o daripada paksi mendatar. Apakah komponen-y daya tersebut?

a)

12.29 N

b)

8.60 N

c)

10.50 N

17.

Given θ=30°\theta=30\degree and weight of the box is 12 N. If the plane is smooth, calculate the sliding force of the box along the plane.
Diberi  θ=30°\theta=30\degree dan berat kotak ialah 12 N. Jika satah itu licin, hitung daya gelongsor kotak itu sepanjang satah.

a)

6 N

b)

9 N

c)

10 N

d)

4 N

18.

Given θ=30°\theta=30\degree and weight of the box is 12 N. If the plane is smooth, calculate the normal reaction force of the box to the plane.
Diberi  θ=30°\theta=30\degree dan berat kotak ialah 12 N. Jika satah itu licin, hitung daya tindakbalas normal kotak pada satah.

a)

10.4  N

b)

9.8 N

c)

6.0 N

d)

4.6 N

19.

Given θ=30°\theta=30\degree and weight of the box is 12 N. If the plane is smooth and mass of the box is 1.2 kg, calculate the acceleration of the box
Diberi  θ=30°\theta=30\degree dan berat kotak ialah 12 N. Jika satah itu licin dan mempunyai jisim 1.2 kg, hitung pecutan kotak tersebut

a)

5.0  m s-2

b)

6.0  m s-2

c)

1.2  m s-2

d)

4.2  m s-2

20.

Given θ=30°\theta=30\degree and weight of the box is 12 N. If the plane has 2 N frictional force and mass of the box is 1.2 kg, calculate the acceleration of the box
Diberi  θ=30°\theta=30\degree dan berat kotak ialah 12 N. Jika satah itu mempunyai daya geseran 2 N dan berjisim 1.2 kg, hitung pecutan kotak tersebut

a)

3.33  m s-2

b)

6.66  m s-2

c)

2.25  m s-2

d)

4.55  m s-2

21.

An object is said to be in ___________ when the forces acting on it produce a zero resultant force.

Suatu objek dikatakan dalam __________ apabila daya yang bertindak padanya menghasilakn sifar paduan daya.

a)

equilibrium force

keseimbangan daya

b)

resolution force

leraian daya

c)

resultant force

paduan daya

22.

"the property of material that enables an object to return to its original shape and size after the force applied on it is removed."

"sifat bahan yang membolehkan suatu objek kembali kepada bentuk dan saiz asalnya selepas daya yang bertindak ke atasnya dialihkan"


This is definition for

Ini adalah definisi bagi

a)

spring constant

pemalar spring

b)

elasticity

kekenyalan

c)

force

daya

d)

extension

pemanjangan

23.

"the extension of a spring is directly proportional to the force applied on the spring provided the elastic limit of the spring is not exceeded."

"pemanjangan suatu spring adalah berkadar terus dengan daya yang bertindak ke atas spring jika tidak melebihi had kenyal spring itu"


This is definition of

Ini definisi bagi

a)

Elasticity

Kekenyalan

b)

Hooke's Law

Hukum Hooke

c)

Spring Constant

Pemalar Spring

d)

Elastic Potential Energy

Tenaga Keupayaan Kenyal

24.

The graph shows data of a spring. Calculate spring constant of the spring

Graf menunjukkan data sebatang spring. Hitung pemalar spring spring itu.

a)

2000 N m-2

b)

200 N m-2

c)

20 N m-2

25.

the gradient of the graph indicates

Kecerunan graf menunjukkan

a)

spring constant

pemalar spring

b)

Force applied

Daya dikenakan

c)

extension

pemanjangan

d)

Elastic potential energy

Tenaga keupayaan kenyal

26.

The graph shows data of a spring. Calculate elastic potential energy when the extension is 5 cm.

Graf menunjukkan data sebatang spring. Hitung tenaga keupayaan kenyal apabila pemanjangannya ialah 5 cm.

a)

2.5 J

b)

25 J

c)

20 J

d)

2.0 J

27.

The graph shows data of a spring. Calculate the extension of the spring when 130 N is applied.

Graf menunjukkan data sebatang spring. Hitung pemanjangan spring apabila daya 130 N dikenakan

a)

2.5 cm

b)

6.5 cm

c)

5 cm

d)

7.5 cm

28.

The graph shows data of a spring. Calculate the force applied to the spring if the extension is 3.25 cm

Graf menunjukkan data sebatang spring. Hitung daya yang dikenakan kepada spring itu jika pemanjangannya ialah 3.25 cm

a)

25 N

b)

65 N

c)

125 N

d)

75 N

29.

A spring with original length 30 cm extends to 36 cm when stretched by a force of 90 N. Calculate the spring constant of the spring

Sebatang spring dengan panjang asal 30 cm memanjang kepada 36 cm apabila ditarik dengan daya 90 N. Hitung pemalar spring spring itu.

a)

3000 N m-1

b)

1500 N m-1

c)

2500 N m-1

d)

1900 N m-1

30.

Based on the graph, which statements are TRUE?

Berdasarkan graf ini, penyataan yang manakah benar?

a)

Stiffness of spring M greater than spring N

Kekerasan spring M lebih besar daripada spring N

b)

Stiffness of spring N greater than spring M

Kekerasan spring N lebih besar daripada spring M

c)

Elasticity of spring M greater than spring N

Kekenyalan spring M lebih besar daripada N

d)

Elasticity of spring N greater than spring M

Kekenyalan spring N lebih besar daripada M

31.

Based on the graph, which statements are CORRECT?

Berdasarkan graf ini, penyataan manakah yang BENAR?

a)

Spring constant of spring M greater than spring N

Pemalar spring spring M lebih tinggi daripada N

b)

Spring constant of spring N greater than spring M

Pemalar spring spring N lebih tinggi daripada M

32.

Which are factors that affecting value of spring constant?

Yang manakah faktor yang mempengaruhi nilai pemalar spring?

a)

length of the spring

panjang spring

b)

diameter of spring

diameter spring

c)

thickness of the spring wire

ketebalan wayar spring

d)

mass of the spring

jisim spring

33.

Which properties of spring that give highest value of k?

Ciri spring yang manakah yang memberi nilai k tertinggi?

a)

thick and short

tebal dan pendek

b)

thin and short

nipis dan pendek

c)

thick and long

tebal dan panjang

d)

thin and long

nipis dan panjang

34.

Which arrangement causes decrease in value of spring constant?

Susunan yang manakah mengurangkan nilai pemalar spring?

a)

in parallel

selari

b)

in series

sesiri

35.

A spring of length 8 cm stretched to 10 cm when 5 N mass is hanged to it. Calculate the value of spring constant when the two identical spring arranged in series.

Sebatang spring dengan panjang 8 cm dipanjangkan kepada 10 cm apabila jisim 5 N di gantung kepadanya. Hitung nilai pemalar spring jika dua spring yang sama disusun secara sesiri.

a)

250 N m-1

b)

500 N m-1

c)

100 N m-1

d)

125 N m-1