Physics Quiz Form 1 Forces
CXC Syllabus on Forces
Questions and Answers
- 1.
- What is a force?
- A.
A push
- B.
A pull
- C.
That which can cause movement
- D.
All the above
Correct Answer
D. All the aboveExplanation
A force is a physical interaction between objects that can cause them to move or change their motion. It can be either a push or a pull, and it encompasses any action that can result in movement. Therefore, all of the given options - a push, a pull, and that which can cause movement - are correct explanations of what a force is.Rate this question:
- 2.
- State four effects of forces?
- A.
It can causes rotation
- B.
It can causes movement
- C.
It can compress and stretch
- D.
All the above
Correct Answer
D. All the aboveExplanation
Forces can have various effects. Firstly, they can cause rotation, which means they can make an object turn or spin around a fixed point. Secondly, forces can cause movement, either by pushing or pulling an object in a certain direction. Thirdly, forces can compress or stretch objects, altering their shape or size. Lastly, all of the mentioned effects can occur simultaneously, so the correct answer is "all the above".Rate this question:
- 3.
- Which of the following is a type of force?
- A.
Gravitational
- B.
Magnetic
- C.
Friction
- D.
Centrifugal
- E.
Centripetal
- F.
Tension
- G.
Nuclear
- H.
Rocket
Correct Answer(s)
A. Gravitational
B. Magnetic
C. Friction
D. Centrifugal
E. Centripetal
F. Tension
G. NuclearExplanation
The question asks for a type of force, and the correct answer lists several types of forces: gravitational, magnetic, friction, centrifugal, centripetal, tension, nuclear. These are all examples of forces that can act on objects in different ways.Rate this question:
- 4.
Would a balance force produce Movement?
- A.
Yes
- B.
No
Correct Answer
B. NoExplanation
A balanced force would not produce movement because it means that the forces acting on an object are equal in magnitude and opposite in direction. This cancels out the effects of the forces, resulting in no net force on the object. Without a net force, there is no acceleration or movement.Rate this question:
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- 5.
Would an unbalance force produce movement?
- A.
Yes
- B.
No
Correct Answer
A. YesExplanation
An unbalanced force would produce movement because it causes a change in the object's motion. When there is an unbalanced force acting on an object, it means that the forces are not equal and opposite, resulting in a net force. This net force causes the object to accelerate in the direction of the force, leading to movement. Therefore, an unbalanced force is necessary for producing movement.Rate this question:
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- 6.
Tick all which are balanced forces
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer(s)
A. Option 1
B. Option 2
C. Option 3
D. Option 4Explanation
The explanation for the given correct answer is that all the options are balanced forces. A balanced force is when two forces of equal magnitude act in opposite directions on an object, resulting in no change in its motion. Since all the options are ticked, it indicates that each option represents a balanced force.Rate this question:
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- 7.
Give an example of an unbalanced force
- A.
Option1
- B.
Option2
- C.
Option3
- D.
Option4
Correct Answer(s)
A. Option1
B. Option2
C. Option3Explanation
An unbalanced force refers to a force that causes a change in an object's motion. It occurs when the net force acting on an object is not zero, resulting in the object accelerating or decelerating. Option 1, Option 2, and Option 3 can all be examples of unbalanced forces if they exert a force on an object that is not counteracted by an equal and opposite force. However, without further context or information about the options, it is not possible to determine specific examples.Rate this question:
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- 8.
How many significant figures are there in 0.01
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
B. 2Explanation
The number 0.01 has two significant figures because both the zeros before the 1 are considered significant. In scientific notation, it can be written as 1.00 x 10^-2, where the zeros after the decimal point indicate that they are significant.Rate this question:
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- 9.
How many significnt figures are there in 11005?
- A.
3
- B.
5
- C.
1
- D.
4
Correct Answer
B. 5Explanation
There are five significant figures in the number 11005. Significant figures are the digits in a number that carry meaning in terms of precision. In this case, all the digits in the number 11005 are significant because they are all non-zero digits. Therefore, the number has five significant figures.Rate this question:
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- 10.
Scientific notation is writing a number as powers of ten, such that the first number is greater than and equal to 1, and 9 or less than 9?
- A.
True
- B.
False
- C.
Option3
- D.
Option4
Correct Answer
A. TrueExplanation
Scientific notation is a way of representing numbers by expressing them as a product of a decimal number between 1 and 9 and a power of 10. In this case, the statement correctly states that the first number in scientific notation must be greater than or equal to 1 and less than 9. Therefore, the answer "true" is correct.Rate this question:
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- 11.
Which is a solid?
- A.
Water
- B.
Air
- C.
Butter
- D.
Space
Correct Answer
C. ButterExplanation
Butter is a solid because it has a definite shape and volume. Unlike water and air, which are both forms of matter in the gas or liquid state, butter maintains its form and does not flow or disperse like liquids or gases. Space, on the other hand, is a vacuum and does not have a physical substance, so it cannot be classified as a solid.Rate this question:
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- 12.
Which is a liquid?
- A.
Carbon dioxide
- B.
Nitrogen
- C.
Oxygen
- D.
Smalta
Correct Answer
D. SmaltaExplanation
The question asks for a liquid, and out of the given options, only "smalta" is a liquid. Carbon dioxide, nitrogen, and oxygen are all gases at room temperature and pressure.Rate this question:
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- 13.
Which is a gas? Select the best answer.
- A.
Air
- B.
Oxygen
- C.
Water vapour
- D.
All the above
Correct Answer
D. All the aboveExplanation
The correct answer is "all the above" because air is a mixture of gases, including oxygen, and water vapor is a gas that is formed when water evaporates. Therefore, all three options mentioned in the question are gases.Rate this question:
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- 14.
A person will sink in mud until the downward force is greater than the upward force?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is false because a person will actually sink in mud until the upward force is greater than the downward force. When a person stands on mud, the mud exerts an upward force called buoyant force, which opposes the downward force of the person's weight. As long as the buoyant force is greater than the weight, the person will float or stay on the surface of the mud. However, if the weight is greater than the buoyant force, the person will sink into the mud.Rate this question:
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- 15.
An upstairs house or part of it will sink and the walls crack if the upward force beneath the post or posts is less than than the weight of the building?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
If the upward force beneath the post or posts is less than the weight of the building, the house or part of it will sink and the walls will crack. This is because the force exerted by the weight of the building is greater than the force pushing it upwards, causing it to sink and resulting in cracks in the walls.Rate this question:
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- 16.
Tick all which will experience friction?
- A.
A submarine passing through water
- B.
A car passing through the air
- C.
A person walking
- D.
A box being pushed along the ground
Correct Answer(s)
A. A submarine passing through water
B. A car passing through the air
C. A person walking
D. A box being pushed along the groundExplanation
All the given options will experience friction. Friction is a force that opposes the motion of an object when it comes into contact with another object or a fluid. In the case of a submarine passing through water, there will be friction between the submarine and the water. Similarly, a car passing through the air will experience air resistance, which is a form of friction. When a person walks, their feet experience friction with the ground, allowing them to move forward. Finally, a box being pushed along the ground will also experience friction between the box and the surface it is being pushed on.Rate this question:
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- 17.
10 kilograms changed to weight is ? (g = 10N/kg)
- A.
10 N
- B.
1N
- C.
100N
- D.
None of the above
Correct Answer
C. 100N -
- 18.
A weight of 50 Newtons changed to mass is?
- A.
5 kg
- B.
50 kg
- C.
5 N
- D.
50N
Correct Answer
A. 5 kgExplanation
The weight of an object is the force exerted on it due to gravity, and it is measured in Newtons. To convert weight to mass, we can use the formula: weight = mass x gravity. Since the weight is given as 50 Newtons, and the acceleration due to gravity is approximately 9.8 m/s^2, we can rearrange the formula to solve for mass: mass = weight / gravity. Substituting the given values, we get mass = 50 N / 9.8 m/s^2 = 5.1 kg. Therefore, the closest answer is 5 kg.Rate this question:
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Jun 27, 2024Quiz Edited by
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Feb 07, 2018Quiz Created by
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