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Test: Balanced and unbalanced forces - Year 8 MCQ


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10 Questions MCQ Test - Test: Balanced and unbalanced forces

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Test: Balanced and unbalanced forces - Question 1

What is weight measured in?

Detailed Solution for Test: Balanced and unbalanced forces - Question 1
Weight is a force and therefore should be measured in newtons
Test: Balanced and unbalanced forces - Question 2

Which of the following is NOT a touching force?

Detailed Solution for Test: Balanced and unbalanced forces - Question 2
Magnets attract or repel at a distance, they do not need to touch the object they are acting on to have an effect
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Test: Balanced and unbalanced forces - Question 3

On Jupiter, 1kg weighs approximately 25 newtons. What would be the weight of 100g?

Detailed Solution for Test: Balanced and unbalanced forces - Question 3

100g = 0.1kg, 0.1kg weighs 0.1 x 25 = 2.5N.
The weight of an object depends on the force of gravity that is acting on it.
The Moon has a gravity of about one sixth of that of the Earth, so 1kg would weigh a lot less than on the Earth, whilst on the planet Jupiter, it would weigh a lot more as the force of gravity there is larger

Test: Balanced and unbalanced forces - Question 4
Which of the following is NOT a force?
Detailed Solution for Test: Balanced and unbalanced forces - Question 4
Mass is measured in grams, kilograms etc
Test: Balanced and unbalanced forces - Question 5
On Earth, 1kg weighs approximately 10N. What would be the weight of 500g?
Detailed Solution for Test: Balanced and unbalanced forces - Question 5
500g = 0.5kg, 0.5kg weighs 0.5 x 10 = 5N
Test: Balanced and unbalanced forces - Question 6

When two forces of equal magnitude act in opposite directions on an object, the forces are:

Detailed Solution for Test: Balanced and unbalanced forces - Question 6

When two forces of equal magnitude act in opposite directions on an object, they cancel each other out. This results in a net force of zero, meaning the forces are balanced.

Test: Balanced and unbalanced forces - Question 7
Which of the following statements about unbalanced forces is NOT true?
Detailed Solution for Test: Balanced and unbalanced forces - Question 7
Unbalanced forces will ALWAYS create movement
Test: Balanced and unbalanced forces - Question 8

An object is accelerating in the direction of the net force. This situation describes:

Detailed Solution for Test: Balanced and unbalanced forces - Question 8

If an object is accelerating, it means there is a net force acting on it in the direction of its acceleration. Therefore, the forces acting on the object are unbalanced.

Test: Balanced and unbalanced forces - Question 9
A spring can be stretched by hanging masses on it. Which of the following is true?
Detailed Solution for Test: Balanced and unbalanced forces - Question 9
According to Newton's third law of motion, if the mass puts a force on the spring, the spring must be putting a force on the mass
Test: Balanced and unbalanced forces - Question 10

What happens to the motion of an object when the forces acting on it are balanced?

Detailed Solution for Test: Balanced and unbalanced forces - Question 10

When forces acting on an object are balanced, the object experiences no net force. According to Newton's First Law of Motion, the object will continue in its current state of motion, which could be at rest or moving with a constant velocity.

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