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Questions and Answers
Which of the following is an example of a non-contact force?
Which of the following is an example of a non-contact force?
- Muscular force
- Weight
- Friction
- Gravity (correct)
How can friction be increased?
How can friction be increased?
- Increase the weight of the objects in contact (correct)
- Decrease the normal force between surfaces
- Decrease surface roughness
- Apply lubricants
What is the correct definition of mass?
What is the correct definition of mass?
- The gravitational pull on an object
- A measure of the force of gravity on an object
- The resistance encountered when one body tries to slide over another
- A measure of the amount of matter in an object (correct)
What force takes place when a bullet is fired from a pistol?
What force takes place when a bullet is fired from a pistol?
Which of the following is a base quantity among the 7 base quantities mentioned in the text?
Which of the following is a base quantity among the 7 base quantities mentioned in the text?
How does a car moving at a steady speed demonstrate Newton's first law?
How does a car moving at a steady speed demonstrate Newton's first law?
What category do quantities like height and depth fall under based on the text?
What category do quantities like height and depth fall under based on the text?
A derived quantity is expressed using:
A derived quantity is expressed using:
What type of quantity does not need other quantities to be expressed according to the text?
What type of quantity does not need other quantities to be expressed according to the text?
Which of the following is an example of a derived quantity mentioned in the text?
Which of the following is an example of a derived quantity mentioned in the text?
How many fundamental or base quantities are there according to the text?
How many fundamental or base quantities are there according to the text?
What is the purpose of purification methods in science?
What is the purpose of purification methods in science?
Which method is suitable for separating an insoluble solid from a liquid?
Which method is suitable for separating an insoluble solid from a liquid?
What is the purpose of a filter paper in the process of filtration?
What is the purpose of a filter paper in the process of filtration?
In filtration, what is the pure substance that passes through the filter paper called?
In filtration, what is the pure substance that passes through the filter paper called?
Which of the following is NOT a method of purification according to the text?
Which of the following is NOT a method of purification according to the text?
What type of substances can be separated by purification methods?
What type of substances can be separated by purification methods?
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