50+ Science worksheets for 3rd Grade on Quizizz | Free & Printable - Free Printable

Let’s go through each question one by one and think about the right answer.

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Question 1: What is the definition of a force?

A force is something that can make an object start moving, stop moving, or change direction. In science, we say it’s a push or a pull.

- Option A: “a push or pull” → This matches the basic definition.
- Option B: “an object in motion” → That’s not a force; that’s just something moving.
- Option C: “energy in use” → Energy and force are related but not the same thing.
- Option D: “a stopped object” → Again, that’s an object, not a force.

✔ So, the correct answer is A.

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Question 2: Which of the following does every force have?

Forces always have two things: how strong they are (strength) and which way they’re going (direction). For example, if you push a box to the right with 5 Newtons, you need both pieces of info.

- Option A: “direction and speed” → Speed isn’t part of a force — forces cause changes in speed, but don’t include speed themselves.
- Option B: “a pull” → Not all forces are pulls — some are pushes.
- Option C: “strength and direction” → Yes! Every force has magnitude (strength) and direction.
- Option D: “a push” → Same as B — not all forces are pushes.

✔ Correct answer is C.

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Question 3: What force is Willis using to change the direction of motion of the ball?

The question says Willis is changing the *direction* of the ball. To do that, he must be applying a force — likely pushing or pulling it. Since no other context is given (like friction or gravity), and since he’s actively doing something to change its path, the most direct answer is that he’s using a push or pull. But looking at the options:

- A: friction → usually slows things down, not typically used to intentionally change direction unless sliding.
- B: gravity → pulls downward, not usually for sideways direction changes.
- C: pull → possible, but less common than push for balls.
- D: push → very common — like kicking or hitting a ball to change its direction.

In most real-life cases (like soccer, baseball, etc.), you push the ball to change its direction.

✔ Best answer is D.

*(Note: If this were a tug-of-war or rope scenario, “pull” might fit — but here it’s a ball, so push makes more sense.)*

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Question 4: Ted pulls Alice in a wagon while Ginger pushes. Evan walks beside them. Which of them is not placing a force on the wagon?

Let’s break it down:

- Ted is pulling → applies force.
- Ginger is pushing → applies force.
- Alice is IN the wagon → she’s being moved, but is she applying force ON the wagon? Probably not — she’s just sitting there. Unless she’s pushing off something, she’s passive.
- Evan is walking beside them → not touching the wagon → definitely NOT applying any force.

Wait — let’s read again: “Ted pulls Alice in a wagon” — so Ted is pulling the wagon (with Alice inside). Ginger is pushing the wagon. Evan is just walking beside — no contact.

So who is NOT placing a force on the wagon?

→ Evan is clearly not touching it → no force.

But what about Alice? She’s inside — unless she’s leaning or pushing, she’s not actively applying force. However, her weight is acting on the wagon via gravity — but that’s indirect. The question probably means active applied force (push/pull).

Still, Evan is the only one with zero interaction.

Looking at the options:

A: Evan
B: Ginger
C: Alice
D: Ted

Ginger and Ted are definitely applying force. Between Alice and Evan — Evan is completely uninvolved.

✔ So the best answer is A: Evan.

*(Some might argue Alice isn’t applying force either — but technically, her mass contributes to normal force and friction, but in elementary level, we consider only intentional push/pull. Still, Evan is safest choice.)*

Actually — rethinking: The question says “placing a force on the wagon”. Alice is sitting in it — her body exerts downward force due to gravity. But in school-level physics, when they say “placing a force”, they usually mean actively pushing or pulling. Evan is doing nothing. So yes — Evan is the clear answer.

✔ Final pick: A

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Question 5: Alicia and Samantha are playing tug-of-war, but neither is moving. What are they demonstrating?

If neither is moving, that means the forces are equal and opposite — they cancel out. That’s called balanced forces.

- A: gravity and friction → not relevant here — tug-of-war is horizontal.
- B: balanced forces → YES! Equal pull from both sides → no movement.
- C: unbalanced pulls → would mean one side wins → someone moves.
- D: push and pull → tug-of-war is all pull, no push involved.

✔ Correct answer: B

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Question 6: When Ted, Alice, and Ginger pull Alicia, Samantha, and Juan over in a game of tug-of-war, what are they demonstrating?

One team won — they pulled the other team over. That means their total force was greater — so the forces were unbalanced.

- A: gravity and friction → again, not the main point.
- B: pushes and friction → no pushing happening.
- C: balanced forces → would mean no movement — but someone got pulled over.
- D: unbalanced forces → YES! One side had more force → caused motion.

✔ Correct answer: D

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Now, compiling final answers:

Final Answer:
1. A
2. C
3. D
4. A
5. B
6. D