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Questions and Answers
Which equation is used to calculate force?
Which equation is used to calculate force?
- Force = weight × acceleration due to gravity
- Force = mass × velocity
- Force = change in momentum / change in time (correct)
- Force = mass × acceleration
What changes the direction of motion but not the speed in a curved path?
What changes the direction of motion but not the speed in a curved path?
- Tension force
- Gravitational force
- Frictional force
- Centripetal force (correct)
Which law states that the total momentum of an isolated system remains constant over time?
Which law states that the total momentum of an isolated system remains constant over time?
- Newton's first law of motion
- Newton's second law of motion
- Law of conservation of energy
- Law of conservation of momentum (correct)
What is the relationship between mass and weight?
What is the relationship between mass and weight?
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Which type of friction is much lesser than sliding friction?
Which type of friction is much lesser than sliding friction?
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