Question

Q.1 Ammeter is a device used to measure

a. voltage

b. Electric current

c. length of the wire



Q. 2 Switch is used to

a. on a circuit

b. off a circuit

c. both a and b

Q.3 if circuit is open it means

a. it conducts heat

b. it conducts electric current

c. none of them



Q.4 A population is all the organisms of ……………………….living in the same place at the same time

A. One species

B. Two species

C. Three species

Q 5. Food supply, predators and …………………….affect the sizes of animal populations

A. Disease

B. Birth rate

c. Death Rate


Q 6. A population decrease in size if the number of deaths per year is ………………………….the number of birth per year

A. Less than

B. Greater than

C. Equal to



7. Which is the more reactive metal.

a. Zinc

b. Lead

c. silver


8. Can silver displace the aluminum in aluminum sulfate.

a. No

b. Yes

c. Don’t know



9. Which is the least reactive metal.

a. Silver

b. Gold

c. Platinum



10. In a bulb electrical energy is converted to

a. Heat only

b. Heat and light

c. Light only

Answer 1

Explanation:

1.a 2.c 3.b 4.a 5.c 6.a 7.a 8.b 9.b 10.b I hope this is correct