Physics Basics Mass and Weight

What is the definition of mass?

• how much something weighs

• a measure of how much matter an object has

• a force of attraction between 2 objects

• a force gravity exerts on a body

What is the definition of weight?

• a measure of how much matter an object has

• a measure of force of gravity on an object

• the force an objects pushes on the ground

• the force on an object due to its size

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The S.I. unit of force is the ___.

• newton

• kilogram

• pound

• cubic centimeter

On Earth, a scale shows that you weigh 490 N. What is your mass?

• 22 kg

• 50 kg

• 100 kg

• 75 kg

What device is used to measure weight?

• a triple beam balance

• a spring scale

• stopwatch

• meter stick

Weight is calculated ___.

• mass × gravity

• gravity × force

• mass ÷ gravity

• gravity × acceleration

What is the mass and weight of a 15 kg object?

• mass: 15 kg; weight: 15 kg

• mass: 147 kg; weight: 15 kg

• mass: 9.81 kg; weight: 147 N

• mass: 15 kg; weight: 147 N

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What are the units of gravity?

• m/s

• N

• N/kg

• N/m/s²

The mass of an object decreases as it moves away from Earth.

• True

• False

The weight of an object decreases as it moves away from Earth.

• True

• False

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