Practice Newton’s Second Law (law Of Acceleration) (2.2) - Forces and Motion

Practice: Newton’s Second Law (Law of Acceleration)

Lesson 2.2Forces and Motion

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10 questions

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4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the formula F = ma represent?
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Think about how force is related to mass and acceleration.
Question 2.
If a car has a mass of 2,000 kg, what will be its acceleration if a net force of 4,000 N is applied?
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Use the formula to find acceleration.
3Question 3.
What does Newton's Second Law state?
- Object at rest stays at rest.
- Force equals mass times acceleration.
- For every action
- there is an equal and opposite reaction.
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Remember the formula related to force.
4Question 4.
True or False: A heavier object requires more force to achieve the same acceleration as a lighter object.
- True
- False
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Consider how mass affects acceleration with constant force.
Question 5.
A cyclist accelerates from 0 to 5 m/s². If the cyclist has a mass of 70 kg and every second, 20 N of force is applied, calculate the distance traveled in 3 seconds.
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Find acceleration first, then use the kinematic equation for distance.
Question 6.
If a car of mass 1,200 kg accelerates uniformly to reach a speed of 80 km/h (22.22 m/s) and takes 10 seconds to do so, what is the net force acting on the car?
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Convert speed to m/s, then use the acceleration to find force.

6 more questions in this section. Enroll free to practise them all.