Forces Motion Worksheet - Free Printable

Let's solve each sentence in the "Forces & Motion" worksheet using the provided word bank:

Word Bank:
- push
- pull
- gravity
- friction
- force
- inertia
- machine
- energy
- balance
- Newton

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1. The greater the ____________ the easier the object will move.

✔ Answer: *force*
Explanation: The greater the force applied to an object, the more it accelerates (assuming mass stays constant), making it easier to move.

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2. To do the job in less time and with less energy, use a ____________

✔ Answer: *machine*
Explanation: Machines help make work easier by changing the amount or direction of a force, often allowing tasks to be done faster and with less effort.

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3. That rock will roll down the hill due to the force of ____________

✔ Answer: *gravity*
Explanation: Gravity is the force that pulls objects toward the Earth, causing the rock to roll downhill.

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4. To make something ____________ both ends need to have the same weight.

✔ Answer: *balance*
Explanation: For something to be balanced (like a seesaw), the weights on both sides must be equal so there’s no net torque.

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5. It takes ____________ to get a job done.

✔ Answer: *energy*
Explanation: Energy is required to perform work (a "job"). Without energy, no motion or change can occur.

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6. ____________ is the idea that something in motion will remain in motion, and something at rest will remain at rest, unless affected by an outside source.

✔ Answer: *inertia*
Explanation: This is Newton's First Law of Motion — inertia is the tendency of an object to resist changes in its state of motion.

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7. It would be more difficult to ____________ a wagon if it didn’t have wheels.

✔ Answer: *pull*
Explanation: Without wheels, you'd have to drag the wagon across the ground, increasing friction. Wheels reduce friction, making pulling easier.

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8. If you have a few people ____________ on the rope, the box will be easier to move.

✔ Answer: *pull*
Explanation: Multiple people pulling together increase the total force applied, making it easier to move the box.

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9. ____________’s theories on motion are still believed correct today.

✔ Answer: *Newton*
Explanation: Sir Isaac Newton formulated the laws of motion, which are still foundational in physics today.

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10. We added wheels to our bureau to create less ____________ when we move it.

✔ Answer: *friction*
Explanation: Wheels reduce sliding friction by converting it into rolling friction, which is much smaller, making movement easier.

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✔ Final Answers:

1. force
2. machine
3. gravity
4. balance
5. energy
6. inertia
7. pull
8. pull
9. Newton
10. friction

Let me know if you’d like this formatted as a printable answer key!