Dr. S K Jain and Dr. Shailesh K Jain Solutions for Chapter: Work, Energy and Power, Exercise 6: PERIODIC TEST

Author:Dr. S K Jain & Dr. Shailesh K Jain

Dr. S K Jain Physics Solutions for Exercise - Dr. S K Jain and Dr. Shailesh K Jain Solutions for Chapter: Work, Energy and Power, Exercise 6: PERIODIC TEST

Attempt the practice questions on Chapter 5: Work, Energy and Power, Exercise 6: PERIODIC TEST with hints and solutions to strengthen your understanding. Physics solutions are prepared by Experienced Embibe Experts.

Questions from Dr. S K Jain and Dr. Shailesh K Jain Solutions for Chapter: Work, Energy and Power, Exercise 6: PERIODIC TEST with Hints & Solutions

EASY
9th CBSE
IMPORTANT

The compressed/stretched spring possesses gravitational potential energy.

EASY
9th CBSE
IMPORTANT

When a body is thrown up, its kinetic energy changes into gravitational potential energy.

EASY
9th CBSE
IMPORTANT

The standard unit of power is Watt.

EASY
9th CBSE
IMPORTANT

Match the columns.

Column A                                            Column B

1. Force                                              a. Watt (W)

2. Power                                             b. Newton (N)

3. Mechanical energy                        c. Joule (J)

EASY
9th CBSE
IMPORTANT

Match the columns

Column A                                           Column B

1. Work done                                     (a) 12mv2

2. Kinetic energy                               (b) Wt

3. Power                                            (c) FScosθ

EASY
9th CBSE
IMPORTANT

Match the columns

Column A                                           Column B

1. Falling stone                                  (a) Potential energy  kinetic energy

2. Simple pendulum                           (b) Chemical energy Heat energy

3. Gas stove burner                            (c) Potential energy  kinetic energy

EASY
9th CBSE
IMPORTANT

Match the columns

Column A                                              Column B

1. Power                                               (a) 28 kW

2. Energy (electrical)                           (b) 200 J

3. Workdone                                         (c) 250 kWh

EASY
9th CBSE
IMPORTANT

Match the columns

Column A                                                                                   Column B

1. Mass of 1 kg, pulled through1 m                                        (a). Workdone = 0 J

    horizontally, force applied 8 N                                             

2. Suitcase on head, person moves upstairs                            (b). Workdone =  mgh J

3. No component of force in the direction of motion                (c). Workdone =  8 J