Search Header Logo
C9-L10-D4-PRANAYA-PHY-LQ

C9-L10-D4-PRANAYA-PHY-LQ

Assessment

Presentation

Physics

9th Grade

Medium

L9WE5, Easy, Vidhyarthi

+17

Standards-aligned

Created by

MAHENDER ALGOT

Used 3+ times

FREE Resource

10 Slides • 10 Questions

1

media

2

media

3

Multiple Choice

What is the main focus of today’s lesson?

1

Types of forces

2

Kinetic energy and its formula

3

Frictional force only

4

Sound energy conversion

4

media

5

Multiple Choice

Kinetic energy is the energy possessed by an object due to its:

1

Temperature

2

Mass only

3

Motion

4

Shape

6

Multiple Choice

If two objects have the same velocity, which has more kinetic energy?

1

The heavier object

2

The lighter object

3

Both have equal energy

4

None have energy

7

Multiple Choice

Why does doubling velocity increase kinetic energy four times?

1

Because KE is independent of speed

2

Because mass doubles

3

Because velocity is squared

4

Because 1⁄2 becomes 1

8

media

9

Multiple Choice

KE = 1⁄2mv2. What does ‘m’ represent?

1

Momentum

2

Mass of object

3

Magnetic force

4

Motion factor

10

media

11

Multiple Choice

Which equation of motion is used in the derivation?

1

v = u + at

2

s = ut + 1⁄2at2

3

v2 = u2 + 2ad

4

F = ma

12

media

13

Multiple Choice

A 2 kg object moves at 3 m/s. KE = ?

1

3 J

2

6 J

3

9 J

4

18 J

14

Multiple Choice

Velocity doubles from 6 m/s → 12 m/s. KE increases by:

1

2 times

2

3 times

3

4 times

4

8 times

15

Multiple Choice

Change in KE when v changes 6 → 12 m/s (mass m):

1

36m J

2

54m J

3

18m J

4

72m J

16

media

17

Multiple Choice

Which situation shows large kinetic energy?

1

Car at rest

2

Slow bicycle

3

Fast-moving cricket ball

4

Stone lying on ground

18

media

19

media

20

media
media

Show answer

Auto Play

Slide 1 / 20

SLIDE