1.1 An object's direction of motion is always the same as …
A) the applied force acting on the object - NSC Technical Sciences - Question 1 - 2021 - Paper 1
Question 1
1.1 An object's direction of motion is always the same as …
A) the applied force acting on the object.
B) a non-zero force acting on the object.
C) the equilibra... show full transcript
Worked Solution & Example Answer:1.1 An object's direction of motion is always the same as …
A) the applied force acting on the object - NSC Technical Sciences - Question 1 - 2021 - Paper 1
Step 1
An object's direction of motion is always the same as …
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Answer
The direction of motion of an object is always aligned with the resultant force acting on it. Therefore, the correct answer is D) the resultant force acting on the object.
Step 2
The law of conservation of momentum implies that … after the collision.
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Answer
In an isolated system, the total linear momentum before the collision equals the total linear momentum after the collision. Thus, the correct choice is C) in an isolated system, the total linear momentum before the collision is equal to the total linear momentum.
Step 3
Which ONE of the following statements is NOT correct?
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Answer
The work done depends on the displacement and the force applied, but it is not necessarily dependent on the nature of the substance in the sense that all materials behave alike under work done. The incorrect statement is B) The work done on an object depends on the nature of the substance.
Step 4
The property of the body by virtue of which the body regains its original shape and size when the deforming force is removed is known as ...
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Answer
This property is referred to as elasticity. Therefore, the correct answer is A) elasticity.
