Mass and weight worksheet - Free Printable
Educational worksheet: Mass and weight worksheet. Download and print for classroom or home learning activities.
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Step-by-step solution for: Mass and weight worksheet
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Show Answer Key & Explanations
Step-by-step solution for: Mass and weight worksheet
Here is the completed worksheet with explanations for each answer:
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Mass and Weight
Q. Fill in the blanks with the words given in the word bank.
Word Bank:
*weight, matter, newton, more, weightlessness, kilograms, gravitational, gravity, same, space*
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1. Mass is the amount of _matter_ contained in an object.
✔ Explanation: Mass measures how much “stuff” (matter) an object contains. It doesn’t change regardless of location.
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2. Mass is measured in _kilograms_.
✔ Explanation: The standard unit of mass in the metric system is kilograms (kg). Grams are also used for smaller masses.
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3. On the Earth mass of an object is the _same_ as its weight.
⚠️ Important Note: This statement is *technically misleading*, but it’s often used in elementary contexts to mean that mass and weight are numerically equal *on Earth* when using common units (e.g., 1 kg mass ≈ 9.8 N weight). However, scientifically, mass and weight are different — mass is constant, weight depends on gravity. But since the word bank includes “same” and no better option fits this phrasing, we use same to match the expected answer for this level.
✔ Better scientific understanding: Mass and weight are not the same thing — mass is scalar (amount of matter), weight is a force (mass × gravity).
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4. Weight is defined as the amount of _gravitational_ force acting on an object.
✔ Explanation: Weight = mass × gravitational acceleration (W = mg). So weight is the force due to gravity pulling on the mass.
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5. Weight changes because of _gravity_.
✔ Explanation: Since weight depends on gravity, if gravity changes (e.g., on Moon vs. Earth), weight changes even though mass stays the same.
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6. There is no force of gravity in _space_.
⚠️ Note: Technically, gravity exists everywhere — even in space! But in orbit or deep space, astronauts experience *apparent* zero gravity because they’re in free fall. For educational purposes at this level, “space” is accepted as the answer to imply regions where gravity’s effect is negligible or not felt.
✔ Answer: space
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7. Astronauts float in the space or in their spacecraft due to _weightlessness_.
✔ Explanation: In orbit, astronauts and spacecraft are falling around Earth together, so they feel no support force — this sensation is called weightlessness (or microgravity).
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8. Weight is measured in _newton_.
✔ Explanation: Newton (N) is the SI unit of force. Since weight is a force, it’s measured in newtons. (On Earth, 1 kg mass weighs about 9.8 N.)
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9. If an object goes into the space its _weight_ changes.
✔ Explanation: Mass remains the same, but weight decreases or becomes nearly zero in space due to reduced or apparent absence of gravity.
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10. An object weighs _more_ at sea level, than at the top of a mountain.
✔ Explanation: Gravity weakens slightly with altitude. At sea level, you’re closer to Earth’s center, so gravity is stronger → higher weight. Atop a mountain, gravity is slightly weaker → lower weight.
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1. matter
2. kilograms
3. same
4. gravitational
5. gravity
6. space
7. weightlessness
8. newton
9. weight
10. more
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📌 Key Concept Recap:
- Mass = amount of matter (constant, measured in kg)
- Weight = force of gravity on that mass (changes with location, measured in N)
- Weight ∝ gravity → less gravity = less weight
- In space (orbit), weightlessness occurs due to free-fall, not absence of gravity
Let me know if you’d like a diagram or further explanation!
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Mass and Weight
Q. Fill in the blanks with the words given in the word bank.
Word Bank:
*weight, matter, newton, more, weightlessness, kilograms, gravitational, gravity, same, space*
---
1. Mass is the amount of _matter_ contained in an object.
✔ Explanation: Mass measures how much “stuff” (matter) an object contains. It doesn’t change regardless of location.
---
2. Mass is measured in _kilograms_.
✔ Explanation: The standard unit of mass in the metric system is kilograms (kg). Grams are also used for smaller masses.
---
3. On the Earth mass of an object is the _same_ as its weight.
⚠️ Important Note: This statement is *technically misleading*, but it’s often used in elementary contexts to mean that mass and weight are numerically equal *on Earth* when using common units (e.g., 1 kg mass ≈ 9.8 N weight). However, scientifically, mass and weight are different — mass is constant, weight depends on gravity. But since the word bank includes “same” and no better option fits this phrasing, we use same to match the expected answer for this level.
✔ Better scientific understanding: Mass and weight are not the same thing — mass is scalar (amount of matter), weight is a force (mass × gravity).
---
4. Weight is defined as the amount of _gravitational_ force acting on an object.
✔ Explanation: Weight = mass × gravitational acceleration (W = mg). So weight is the force due to gravity pulling on the mass.
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5. Weight changes because of _gravity_.
✔ Explanation: Since weight depends on gravity, if gravity changes (e.g., on Moon vs. Earth), weight changes even though mass stays the same.
---
6. There is no force of gravity in _space_.
⚠️ Note: Technically, gravity exists everywhere — even in space! But in orbit or deep space, astronauts experience *apparent* zero gravity because they’re in free fall. For educational purposes at this level, “space” is accepted as the answer to imply regions where gravity’s effect is negligible or not felt.
✔ Answer: space
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7. Astronauts float in the space or in their spacecraft due to _weightlessness_.
✔ Explanation: In orbit, astronauts and spacecraft are falling around Earth together, so they feel no support force — this sensation is called weightlessness (or microgravity).
---
8. Weight is measured in _newton_.
✔ Explanation: Newton (N) is the SI unit of force. Since weight is a force, it’s measured in newtons. (On Earth, 1 kg mass weighs about 9.8 N.)
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9. If an object goes into the space its _weight_ changes.
✔ Explanation: Mass remains the same, but weight decreases or becomes nearly zero in space due to reduced or apparent absence of gravity.
---
10. An object weighs _more_ at sea level, than at the top of a mountain.
✔ Explanation: Gravity weakens slightly with altitude. At sea level, you’re closer to Earth’s center, so gravity is stronger → higher weight. Atop a mountain, gravity is slightly weaker → lower weight.
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✔ Final Answers:
1. matter
2. kilograms
3. same
4. gravitational
5. gravity
6. space
7. weightlessness
8. newton
9. weight
10. more
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📌 Key Concept Recap:
- Mass = amount of matter (constant, measured in kg)
- Weight = force of gravity on that mass (changes with location, measured in N)
- Weight ∝ gravity → less gravity = less weight
- In space (orbit), weightlessness occurs due to free-fall, not absence of gravity
Let me know if you’d like a diagram or further explanation!
Parent Tip: Review the logic above to help your child master the concept of mass and weight worksheet answers.
