🌍 Part 1: Understanding Gravity and Weight

1. What keeps planets in orbit around the Sun?

The Sun's magnetic field

The Sun's gravitational pull

Solar wind

Planetary rotation

2. A person has a mass of 50 kg on Earth. What is their mass on Mars?

19 kg

50 kg

131 kg

It depends on Mars' gravity

3. Which statement about weight and mass is correct?

Weight and mass are the same thing

Mass changes on different planets, weight stays the same

Weight changes on different planets, mass stays the same

Both weight and mass change on different planets

4. Explain in one sentence why your weight would be different on Mars compared to Earth:

🔢 Part 2: Weight Calculations

Formula: Weight on planet = (Gravity on planet ÷ Gravity on Earth) × Earth weight

Gravity values: Earth = 9.8 m/s², Mars = 3.7 m/s², Jupiter = 24.8 m/s², Moon = 1.6 m/s²

5. If you weigh 120 pounds on Earth, calculate your weight on Mars. Show your work:

Your weight on Mars would be __________ pounds.

6. Calculate your actual Earth weight on Jupiter and the Moon:

My Earth weight: __________ pounds

My weight on Jupiter: __________ pounds

My weight on the Moon: __________ pounds

7. A 150-pound astronaut travels to different locations. Fill in the missing weights:

Earth: 150 pounds

Mars: __________ pounds

Jupiter: __________ pounds

Moon: __________ pounds

🚀 Part 3: Analysis and Application

8. Based on your calculations, on which celestial body would you weigh the most? The least? Explain why:

9. An astronaut needs to lift a 60-pound piece of equipment on Earth. How much would this same equipment weigh on Mars? Would it be easier or harder to lift there?

10. Challenge: If a planet had twice Earth's gravity, what would be the gravity value? How would your weight compare to your Earth weight?

Planetary Weight Calculations

Planetary Weight Calculations

🌍 Part 1: Understanding Gravity and Weight

🔢 Part 2: Weight Calculations

🚀 Part 3: Analysis and Application

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