Let's go through the worksheet step by step and solve each part with explanations.
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1. Motion is the effect of:
Options:
a. Friction
b. Force
c. Rest
✔ Correct answer: b. Force
Explanation:
Motion occurs when a force is applied to an object. According to Newton’s First Law of Motion, an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force. So,
force is what causes motion.
>
✔ Answer:
b. Force
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2. An object is at rest when:
Options:
a. It is not moving at all
b. It is moving from one place to another
✔ Correct answer: a. It is not moving at all
Explanation:
An object is said to be
at rest if it does not change its position with respect to its surroundings over time. If it's moving, it's in motion.
>
✔ Answer:
a. It is not moving at all
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3. Write the positions in the next picture: initial and final
In the image:
- A boy kicks a soccer ball.
- The ball moves through three positions (shown as three soccer balls with arrows).
- The
initial position is where the ball starts — right before the kick.
- The
final position is the last point shown after movement.
So:
-
Initial position: The first soccer ball (the one being kicked)
-
Final position: The last soccer ball (farthest from the boy)
>
✔ Fill in:
-
Initial: First soccer ball (under the boy’s foot)
-
Final: Last soccer ball (on the far right)
> You can write:
> -
Initial: First position
> -
Final: Last position
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4. Choose the objects that are at rest
We need to identify which objects in the image are
not moving.
Looking at the images:
1.
Stack of books → Not moving →
At rest
2.
Earth (globe) → Shown stationary →
At rest
3.
Airplane → Flying →
In motion
4.
Boy and soccer ball → The boy is kicking, so both are moving →
Not at rest
So, the objects
at rest are:
- Stack of books
- Earth (globe)
>
✔ Answer:
> - Stack of books
> - Earth
> Fill in the blanks with:
> -
Stack of books
> -
Earth
> *(You can write them in any order)*
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✔ Final Answers Summary:
1.
Motion is the effect of:
→
b. Force
2.
An object is at rest when:
→
a. It is not moving at all
3.
Initial and Final positions:
→
Initial: First soccer ball (being kicked)
→
Final: Last soccer ball (farthest)
4.
Objects at rest:
→
Stack of books,
Earth
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Let me know if you'd like this formatted for printing or filled into the worksheet!
Parent Tip: Review the logic above to help your child master the concept of speed and motion worksheet.
