1. The weight of rock on earth is 36 N.What is the weight of rock on the Moon?1) 36 N 2) 6 N 3) 18 N 4) 216 N
|
2. What is the SI unit of mass?1) Joules 2) Kilogram 3) Newton 4) Pascal
|
3. What is the formula of weight?1) W=mg 2) W=fs 3) W=s/t 4) W=fv
|
4. A mass of 1 kg has a weight of ________1) 20 N 2) 1 N 3) 10 N 4) 15 N
|
5. An object at rest does not change its state of rest easily because of ____1) friction 2) inertia 3) mass 4) density
|
ต้องการเฉลยข้อสอบ โปรดเข้าระบบสมาชิก
|
|
|