Subject :NSO Class : Class 9
Subject :NSO Class : Class 6
A solid ball is released from the top of a slope as shown in the figure.
What will happen to the ball's kinetic and potential energy as it slips down the slope at a constant speed?
| Kinetic energy |
Potential energy |
|
|---|---|---|
| A | Increases | Decreases |
| B | Remains unchanged |
Decreases |
| C | Increases | Increases |
| D | Remains unchanged |
Remains unchanged |
Ans 1:
Class : Class 7
Option A is correct option. At the top GPE will be maximum and at the bottom of ramp GPE will be zero.At the top, KE will be zero and at the bottom KE will be maximum.Solution given is incorrect. Acceleration is constant not the speed of ball.
Ans 2:
Class : Class 6
kinectic energy increases and potential energy decreases
Ans 3:
Class : Class 4
option a
Ans 4:
Class : Class 6
actually, its given constant speed so b is correct as kinetic energy increases only when the speed increase
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Subject :NSO Class : Class 8
Ans 1:
Class : Class 8
how did that happen???
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Subject :NSO Class : Class 4
Ans 1:
Class : Class 5
The answer is B because ring is called bangle and ring is worn in a finger
Ans 2:
Class : Class 5
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Subject :NSO Class : Class 10
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Subject :NSO Class : Class 5
Study the given Venn diagram.
Which letters in the Venn diagram represent solid, liquid and gas?
| Solid | Liquid | Gas | |
|---|---|---|---|
| A | T | V | S |
| B | P | V | R |
| C | Q | S | U |
| D | P | T | R |
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Subject :NSO Class : Class 7
Ans 1:
Class : Class 8
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Subject :NSO Class : Class 9
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Subject :NSO Class : Class 6
Ans 1:
Class : Class 7
EASIEST QUESTION!!
