The property of a body to resist any change in its state of motion or rest is …
A - NSC Technical Sciences - Question 1 - 2023 - Paper 1
Question 1
The property of a body to resist any change in its state of motion or rest is …
A. mass.
B. force.
C. inertia.
D. acceleration.
Worked Solution & Example Answer:The property of a body to resist any change in its state of motion or rest is …
A - NSC Technical Sciences - Question 1 - 2023 - Paper 1
Step 1
1.1 The property of a body to resist any change in its state of motion or rest is …
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Answer
The correct answer is C. inertia. Inertia is the tendency of an object to maintain its state of rest or uniform motion unless acted upon by an external force.
Step 2
1.2 The diagram below shows forces F₁ and F₂ that are applied on an object placed on a frictionless surface. The object accelerates to the left.
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Answer
Since the object accelerates to the left, we can conclude that F₁ < F₂ (the net force is to the left). Thus, the correct statement is B. F₂ > F₁.
Step 3
1.3 In physics, an isolated system is defined as a system in which …
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Answer
An isolated system in physics is characterized by A. the net external force acting on it is zero.
Step 4
1.4 The graph below represents the work done on an object versus time taken. Which ONE of the following physical quantities is represented by the gradient of the graph?
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Answer
The gradient of the work versus time graph represents C. Power. Power is defined as the rate at which work is done.
Step 5
1.5 Which ONE of the following statements about Hooke's law is CORRECT? Stress is …
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Answer
According to Hooke's law, stress is A. directly proportional to strain when the elastic limit is not exceeded.
Step 6
1.6 Pressure is measured in …
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Answer
The unit for measuring pressure is D. pascal. 1 pascal is defined as 1 newton per square meter.
Step 7
1.7 Dispersion of light is the …
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Answer
Dispersion of light refers to C. spreading out of light as it passes around the edges of a small hole or through different media, causing different colors to separate.
Step 8
1.8 Which ONE of the following units are used to measure frequency?
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Answer
The unit used to measure frequency is C. Hertz.
Step 9
1.9 The capacitance in a capacitor will increase when …
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Answer
The capacitance will increase when A. a dielectric with a higher dielectric constant is used.
Step 10
1.10 A device that converts electric energy into mechanical energy is a …
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