Question

5. Use the table to answer the question.

Planet
Estimated Mass of Planet (1024kg)

Venus 4.87
Mars 0.624
Jupiter 1898.0
Neptune 102.0
A spacecraft flies within 500,000 km of each of these planets. Based on its mass, which planet would gravitationally attract the spacecraft the most?

(1 point)

Neptune

Venus

Mars

Jupiter
6. A student conducts an investigation to study the effect of gravity on objects of different masses. Which step should be first in the investigation? (1 point)

Measure the distance between the objects.

Drop the objects from a height.

Find objects of different masses and measure them.

Time how long it takes for the objects to fall.
7. A science class is conducting an investigation to see how gravity affects objects of different masses. They drop three balls from the same height. They time how long it takes the balls to hit the ground. What are the students comparing? (1 point)

the gravitational attraction of each ball

the height from which each ball is dropped

the mass of each ball

the time it takes for each ball to fall
8. A hammer and a feather are dropped from the same height. Imagine that there is no resistance to the objects' motion in air. Which value will be different for the two objects? (1 point)

the upward push of air resistance

the gravitational attraction between the Earth and the objects

the velocity of the objects

the time it takes for them to fall
9. A coin (5 grams), a small parachute (21 grams), and a hammer (710 grams) are all dropped from a height of 10 meters. The coin and the hammer take about the same amount of time to fall. Which statement describes the time it takes for the parachute to fall? (1 point)

It takes the same amount of time to fall because the effect of gravity is the same.

It takes less time to fall because it has the least mass.

It takes longer to fall because it experiences greater air resistance.

It takes less time to fall because it has the most surface area.

Answer 1

5. Jupiter — all distances are the same, so the most massive planet (Jupiter) exerts the strongest gravitational pull.

6. Find objects of different masses and measure them. — you must choose and measure the different masses first.

7. the time it takes for each ball to fall — they are comparing fall times.

8. the gravitational attraction between the Earth and the objects — the force (mg) differs because the masses differ; with no air resistance acceleration and fall time are the same.

9. It takes longer to fall because it experiences greater air resistance.