Match the following? Column-I Column-II (a) F net (i) d K d t (b) F cons (ii) Δ U + Δ K (c) ∑ W non-cons (iii) - d U d x (d) Power (iv) d P d t

(a-iii), (b-ii), (c-ii), (d-ii)

Match the following? Column-I Column-II (a) F net (i) d K d t (b) F cons (ii) Δ U + Δ K (c) ∑ W non-cons (iii) - d U d x (d) Power (iv) d P d t

(a-iii), (b-ii), (c-ii), (d-ii)

EASY

AP EAPCET

IMPORTANT

Earn 100

Which of the following statements is false?

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Important Questions on Work, Energy and Power

HARD

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET Medical 2019 (24-Apr Shift-1)>Q 4

One end of a compressed spring of spring constant

5 \times 10^{3} {Nm}^{- 1}

is fixed to a wall and a block of mass

0.5 kg

is kept in contact with the other end of the spring. If the spring is suddenly released, the block moves with a momentum

10 Ns

. Then the compression of the spring is

MEDIUM

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET Medical 2021 (6-Sep Forenoon)>Q 5

A stationary object breaks into two pieces

A

and

B

of masses

6 kg

and

8 kg

respectively. If the velocity of

B

6 m s^{- 1}

, then find the kinetic energy of

A .

EASY

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET Medical 2021 (6-Sep Afternoon)>Q 6

The momentum of a particle is numerically equal to its kinetic energy. What will be the velocity of the particle ?

EASY

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET - 3 Sep 2021 Forenoon>Q 7

The graph between resistive force $F$ acting on a body and the distance covered by the body is shown in the figure. If the mass and initial velocity of the body are $25 kg$ and $2 m \cdot s^{- 1}$ respectively, find its kinetic energy after having travelled a distance of $4 m$

Question Image

EASY

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET - 3 Sep 2021 Afternoon>Q 8

When a ball of mass

50 g

is thrown upwards, it raises to a maximum height of

100 m .

At what height its

K . E

. will be reduced to

70 % ?

EASY

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET - 3 Sep 2021 Afternoon>Q 9

In the arrangement shown in the figure, $m_{A} = 1 kg$ and $m_{B} = 4 kg .$ Assume that the string is light and inextensible and the pulley is smooth. If the coefficient of friction between block $' A'$ and the table is $0.2,$ the speed of both the blocks when $' B'$ has descended through a height $h = 1 m$ is nearly take $(g = 10 m \cdot s^{- 2})$

Question Image

MEDIUM

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET Medical 2021 (6-Sep Forenoon)>Q 10

Match the following?

Column-I		Column-II
(a)	$F_{net}$	(i)	$\frac{d K}{d t}$
(b)	$F_{cons}$	(ii)	$Δ U + Δ K$
(c)	$\sum W_{non-cons}$	(iii)	$\frac{- d U}{d x}$
(d)	$Power$	(iv)	$\frac{d P}{d t}$

MEDIUM

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 6 - Work, Energy and Power>AP EAPCET 2020 (24-Sep Shift-1)>Q 11

A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in time '

t

' is proportional to

Which of the following statements is false?

Important Questions on Work, Energy and Power

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