Science

Question 1

1A current of 5 A flows through a resistor of 2 Ω. Find the voltage across it.

Medium

A. 10 V B. 0.4 V C. 7 V D. 20 V

Question 2

2A magnet attracts

Easy

A. glass marbles B. plastic pens C. wooden rulers D. iron nails

Question 3

3The blood vessel that carries blood from the heart to the lungs is the

Hard

A. pulmonary artery B. pulmonary vein C. aorta D. vena cava

Question 4

4The first step of the scientific method is usually to

Easy

A. write the conclusion B. make an observation or identify a problem C. publish results D. ignore the problem

Question 5

5Eating and drinking in the laboratory is allowed if you are careful.

Easy

A. True B. False

Question 6

6The basic unit of life is the

Easy

A. system B. organ C. cell D. tissue

Question 7

7The green pigment in chloroplasts is ___.

Easy

Your answer (fill in the blank)

Question 8

8An athlete runs 100 m in 60 s. Her average speed is ___ m/s.

Easy

Your answer (fill in the blank)

Question 9

9Objects that produce their own light are ___.

Easy

Your answer (fill in the blank)

Question 10

10Liquids have a fixed shape.

Easy

A. True B. False