1. ______is the quantity of matter contained an object and measured with a_______balance1) weight, spring balance 2) weight , beam balance 3) mass, spring balance 4) mass, beam balance
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2. The mass of rock on earth is 2.0kg.What is the weight of rock on the Earth?1) 36 N 2) 6 N 3) 18 N 4) 20 N
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3. A mass of 1 kg has a weight of ________1) 20 N 2) 1 N 3) 10 N 4) 15 N
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4. An object at rest does not change its state of rest easily because of ____1) friction 2) inertia 3) mass 4) density
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5. What is the formula of weight?1) W=mg 2) W=fs 3) W=s/t 4) W=fv
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ต้องการเฉลยข้อสอบ โปรดเข้าระบบสมาชิก
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