7th SCIENCE

1. Which of the following is a derived quantity?

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

2. Which of the following is correct?

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

3. SI unit of density is_____

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

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

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

5) Light year is the unit of _____

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

Información: 7th SCIENCE