Physics Questions Practice Question and Answer
3 4 Q:
64919f9ec7d7c7e0670d10b8 Answer : 4. "Compounds"
4 Q:
649aa3043662c8741dfd960b Answer : 1. "Newton is a unit of force."
4 Q:
5f6da2bdec13dd748004c084
Q: According to Dalton’s atomic theory, atoms combine in the ratio of small whole numbers to form ______.
785 064919f9ec7d7c7e0670d10b8
64919f9ec7d7c7e0670d10b8- 1Neutronsfalse
- 2Moleculesfalse
- 3Protonsfalse
- 4Compoundstrue
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Answer : 4. "Compounds"
Explanation :
1. According to Dalton's atomic theory, atoms combine in small whole-number proportions to form compounds.
Q: Identify the correct statement.
686 0649aa3043662c8741dfd960b
649aa3043662c8741dfd960b- 1Newton is a unit of force.true
- 2Newton is a unit of power.false
- 3Joule is a unit of force.false
- 4Joule is a unit of power.false
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Answer : 1. "Newton is a unit of force."
Explanation :
1. Newton is the SI unit of force. It is a unit force that causes an acceleration of one meter per second on one kilogram of mass.
- Force can be defined as:
Force =Mass x Acceleration
2. Joule is the SI unit of energy and work. It is the unit work done by one Newton force over a distance of one meter.
- Energy can be defined as:
Energy = Work x Time
Q: What makes a virtual image of a real object?
1 05f6da2bdec13dd748004c084
5f6da2bdec13dd748004c084- 1convex mirrorfalse
- 2plane mirrortrue
- 3concave mirrorfalse
- 4All of thesefalse
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Answer : 2. "plane mirror"
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