10th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - One

10th Standard

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Science

Time : 00:20:00 Hrs
Total Marks : 20

12th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 1

20 x 1 = 20
1. The resistance of a body to change its state of motion is called

(a)

force

(b)

momentum

(c)

inertia of motion

(d)

inertia of direction

2. The ball is thrown up, the value of g will be

(a)

zero

(b)

+ve

(c)

-ve

(d)

negligible

3. When light travels from rarer to denser medium, the refracted ray is ______  the normal.

(a)

bent away

(b)

along

(c)

bent towards

(d)

just grazes the surface of separation

4. An object is placed at 12 cm from a convex lens whose focal length is 10 cm. The image must

(a)

Virtual and enlarged

(b)

real and reduced in size

(c)

virtual and reduced size

(d)

real and enlarged size

5. All the substances will undergo the following changes like _____ when heated.

(a)

increase in temperature

(b)

expansion of substance

(c)

change of state

(d)

all the above

6. The relation between potential difference (V) and current (I) is:

(a)

$\alpha$I

(b)

V$\alpha$I2

(c)

V$\alpha$$\frac{I}{I}$

(d)

None of the above

7. How many terminals an electric bulb consist of?

(a)

2

(b)

4

(c)

3

(d)

1

8. The speed of sound in air is 300 m/s. What is the frequency as heard by the human ear?

(a)

0.001 Hz

(b)

1 Hz

(c)

10,000 Hz

(d)

1,00,000 Hz

9. Henry Becquerel discovered ________ in 1896

(a)

nucleus

(b)

atom

(c)

isotopes

(d)

10. Chain reaction is possible only when the loss of neutrons is ________ the neutrons produced.

(a)

less than

(b)

greater than

(c)

equal to

(d)

independent of

11. Which of the following statement regarding an atom is always correct?

(a)

An atom has equal number of electrons and protons

(b)

An atom has equal number of electrons and neutrons

(c)

An atom has equal number of electrons, protons and neutrons

(d)

An atom has equal number of protons and neutrons

12. The weight of a molecule of the compound C60H122 is:

(a)

1.4 x 10-21g

(b)

1.09 x 10-21g

(c)

5.025 X 1023g

(d)

16.023 x 1023g

13. Modern periodic law is based on __________

(a)

atomic mass

(b)

atomic number

(c)

number of neutrons

(d)

Both (a) and (b)

14. The chemical symbol of Iron is _________________

(a)

I

(b)

Ir

(c)

FE

(d)

Fe

15. Pick out the metal that displaces hydrogen from hydrochloric acid.

(a)

Zinc

(b)

Silver

(c)

Copper

(d)

Gold

16. The enzymes present in yeast is / are _____________

(a)

invertage

(b)

zymase

(c)

both (a) and (b)

(d)

neither (a) nor (b)

17. Transpiration does not___________

(a)

help in ascent of sap

(b)

help in keeping cells turgid

(c)

helps in cooling leaves

(d)

helps in translocation

18. Auxins were identified by ______

(a)

Darwin

(b)

Kogi

(c)

Went

(d)

Funk

19. Normal gestation period of human last for about ________days

(a)

280

(b)

380

(c)

480

(d)

580