Gravity — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A balance compares two masses, so it measures mass.
Grade 5 science explains that a balance compares amounts of matter.
2. A spring scale stretches more when gravity pulls harder, so it measures weight.
Grade 5 learners see spring scales respond to the gravity force, which is weight.
3. An object with more mass has a stronger pull of gravity acting on it.
Grade 5 students know gravity pulls more on objects with greater mass.
4. If a backpack has a mass of 5 kilograms, it has 5 kilograms on the Moon as well.
Grade 5 science teaches that mass values do not change between Earth and the Moon.
5. A 60 newton dog on Earth would weigh only about 10 newtons on the Moon.
Grade 5 learners apply the 1/6 rule to compare Earth and Moon weights.
6. On Jupiter, a person would feel much heavier because Jupiter's gravity is much stronger.
Grade 5 science connects bigger gravity to greater weight on giant planets.
7. Astronauts inside the orbiting space station appear to float because they are in free fall.
Grade 5 students learn the floating feeling comes from continuous free fall.
8. Even though astronauts float, gravity from Earth still pulls on them.
Grade 5 science explains Earth's gravity reaches the space station and pulls on astronauts.
9. The amount of matter in your body is your mass.
Grade 5 learners restate that mass measures matter and stays constant.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Balance
→ Compares two masses to measure mass
Increases an object's weight
Spring scale
→ Stretches with the local gravity to show weight
Float because they are in free fall
Stronger gravity
→ Increases an object's weight
Compares two masses to measure mass
Astronauts in space station
→ Float because they are in free fall
Stretches with the local gravity to show weight
Grade 5 students connect tools and situations to how mass, weight, and gravity behave.