The table shows the values of two quantities for an astronaut on Earth and Mars.

Astronaut's Details

Earth Mars

Quantity A 735 units 279.75 units

Quantity B 75 units 75 units

Which of the following names the quantity and correctly explains why that represents the force exerted on the astronaut?

Which quantity measures the force exerted on the astronaut?

Quantity A, because it is independent of the location

Quantity A, because it changes with gravitational pull

Quantity B, because it remains unchanged in space

Quantity B, because it is the quantity of matter present

Question

Biology

Edith Gentry

31 March, 21:22

The table shows the values of two quantities for an astronaut on Earth and Mars.

Astronaut's Details

Earth Mars

Quantity A 735 units 279.75 units

Quantity B 75 units 75 units

Which of the following names the quantity and correctly explains why that represents the force exerted on the astronaut?

Which quantity measures the force exerted on the astronaut?

Quantity A, because it is independent of the location

Quantity A, because it changes with gravitational pull

Quantity B, because it remains unchanged in space

Quantity B, because it is the quantity of matter present

+4

Answers (1)

Know the Answer?

Jakob Schwartz · Answer 1

Answers:

Quantity A because it changes with gravitational pull.

Explanation:

Mass defines the constitutive matter of an object. It is immutable (does not change). Although it could be converted into energy, the matter is constant.

On the other hand, the weight of an object (gravitational force) depends on the acceleration due to gravity.

That is why an astronaut weighs about three times more on earth than on Mars. The gravitational acceleration on Mars is about one third that on earth.