Forces Worksheet for kids - Free Printable
Educational worksheet: Forces Worksheet for kids. Download and print for classroom or home learning activities.
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Step-by-step solution for: Forces Worksheet for kids
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Show Answer Key & Explanations
Step-by-step solution for: Forces Worksheet for kids
Let's go through each statement one by one and determine whether it is True or False, along with a brief explanation for each.
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1. The concept of gravity was first theorised by Albert Einstein.
✘ False
Explanation: While Albert Einstein revolutionized our understanding of gravity with his General Theory of Relativity (1915), the concept of gravity as a force was first formulated by Sir Isaac Newton in the 17th century (Newton’s Law of Universal Gravitation, published in 1687). Einstein's theory expanded on it, but he did not originate the concept.
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2. Any object that has mass exerts a gravitational force.
✔ True
Explanation: According to Newton’s law of universal gravitation, every object with mass attracts every other object with mass. The strength depends on the masses and distance between them. So yes, even small objects like apples exert gravity — just very weakly.
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3. The gravitational pull of the sun keeps the planet in orbit around it.
✔ True
Explanation: The Sun's gravity provides the centripetal force that keeps planets in orbit. Without this gravitational pull, planets would move in straight lines due to inertia (as per Newton’s First Law).
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4. There is no gravity on outer space.
✘ False
Explanation: Gravity exists in outer space. For example, astronauts in orbit are still under Earth’s gravity — they’re in freefall around Earth. Even in deep space, gravity from stars, planets, and galaxies affects objects. "Zero gravity" is a misnomer; it’s actually microgravity.
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5. Stars have the strongest gravitational pull of any object in space.
✘ False
Explanation: While stars have strong gravity, black holes and neutron stars have much stronger gravitational pulls. Black holes, in particular, have such intense gravity that not even light can escape. So stars do not have the strongest gravitational pull overall.
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6. The moon has one sixth the gravitational pull of the Earth.
✔ True
Explanation: The Moon’s surface gravity is about 1/6th of Earth’s. This is why astronauts could jump higher and feel lighter on the Moon. It's due to the Moon's smaller mass and size.
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7. The force of gravity accelerates everything at the same rate, regardless of weight.
✔ True
Explanation: In a vacuum (no air resistance), all objects fall at the same rate due to gravity — approximately 9.8 m/s² on Earth. This was famously demonstrated by Galileo and confirmed by experiments (like dropping a hammer and feather on the Moon). Weight (mass × gravity) doesn’t affect acceleration in freefall.
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8. Gravity is caused by the earth’s spin and air pressure.
✘ False
Explanation: Gravity is caused by mass — specifically, the Earth’s mass creates a gravitational field. The Earth’s spin causes centrifugal effects (which slightly reduce effective gravity at the equator), and air pressure is unrelated to gravity. Gravity exists even in a vacuum, so it's not due to air pressure.
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1. False
2. True
3. True
4. False
5. False
6. True
7. True
8. False
Let me know if you'd like a printable version or visual summary! 🚀
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1. The concept of gravity was first theorised by Albert Einstein.
✘ False
Explanation: While Albert Einstein revolutionized our understanding of gravity with his General Theory of Relativity (1915), the concept of gravity as a force was first formulated by Sir Isaac Newton in the 17th century (Newton’s Law of Universal Gravitation, published in 1687). Einstein's theory expanded on it, but he did not originate the concept.
---
2. Any object that has mass exerts a gravitational force.
✔ True
Explanation: According to Newton’s law of universal gravitation, every object with mass attracts every other object with mass. The strength depends on the masses and distance between them. So yes, even small objects like apples exert gravity — just very weakly.
---
3. The gravitational pull of the sun keeps the planet in orbit around it.
✔ True
Explanation: The Sun's gravity provides the centripetal force that keeps planets in orbit. Without this gravitational pull, planets would move in straight lines due to inertia (as per Newton’s First Law).
---
4. There is no gravity on outer space.
✘ False
Explanation: Gravity exists in outer space. For example, astronauts in orbit are still under Earth’s gravity — they’re in freefall around Earth. Even in deep space, gravity from stars, planets, and galaxies affects objects. "Zero gravity" is a misnomer; it’s actually microgravity.
---
5. Stars have the strongest gravitational pull of any object in space.
✘ False
Explanation: While stars have strong gravity, black holes and neutron stars have much stronger gravitational pulls. Black holes, in particular, have such intense gravity that not even light can escape. So stars do not have the strongest gravitational pull overall.
---
6. The moon has one sixth the gravitational pull of the Earth.
✔ True
Explanation: The Moon’s surface gravity is about 1/6th of Earth’s. This is why astronauts could jump higher and feel lighter on the Moon. It's due to the Moon's smaller mass and size.
---
7. The force of gravity accelerates everything at the same rate, regardless of weight.
✔ True
Explanation: In a vacuum (no air resistance), all objects fall at the same rate due to gravity — approximately 9.8 m/s² on Earth. This was famously demonstrated by Galileo and confirmed by experiments (like dropping a hammer and feather on the Moon). Weight (mass × gravity) doesn’t affect acceleration in freefall.
---
8. Gravity is caused by the earth’s spin and air pressure.
✘ False
Explanation: Gravity is caused by mass — specifically, the Earth’s mass creates a gravitational field. The Earth’s spin causes centrifugal effects (which slightly reduce effective gravity at the equator), and air pressure is unrelated to gravity. Gravity exists even in a vacuum, so it's not due to air pressure.
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✔ Final Answers:
1. False
2. True
3. True
4. False
5. False
6. True
7. True
8. False
Let me know if you'd like a printable version or visual summary! 🚀
Parent Tip: Review the logic above to help your child master the concept of gravity worksheets.
