7th SCIENCE

1. Which of the following is a derived quantity?

c) area a) mass b) time d) length

2. Which of the following is correct?

1L=10cc 1L=100cc 1L=1000cc 1L=1cc

3. SI unit of density is_____

d) g/m[sup]3[/sup] a) kg/m[sup]2[/sup] b) kg/m[sup]3[/sup] c) kg/m

4. Two spheres have mass and volume in the ratio 2:1. The ratio of their density is ______

c) 4:1 a) 1:2 d) 1:4 b) 2:1

5) Light year is the unit of _____

d) both length and time b) TIME c) density a) distance

Information: 7th SCIENCE