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

Let’s go through each question one by one, step by step.

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Question 1: What is the definition of a force?

Think about what happens when you push a door or pull a wagon — that’s a force. In science, a force is simply a push or a pull on an object. It can make something start moving, stop moving, or change direction.

Looking at the options:
- A: “a push or pull” → This matches our idea.
- B: “an object in motion” → That’s not a force; it’s just something moving.
- C: “energy in use” → Energy and force are related but not the same thing.
- 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?

Every force has two important things: how strong it is (strength) and which way it’s going (direction). For example, if you push a box to the right with 5 newtons of force, you’re giving both strength (5 N) and direction (right).

Options:
- A: “direction and speed” → Speed isn’t part of a force — forces don’t have speed.
- B: “a pull” → Not all forces are pulls — some are pushes.
- C: “strength and direction” → Yes! Every force must have these.
- 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 — either pushing or pulling it sideways. Since no other context is given (like friction or gravity), and we’re told he’s actively changing its path, the most direct answer is that he’s using a push or pull.

But look at the options:
- A: friction → Friction slows things down, usually doesn’t change direction unless sliding.
- B: gravity → Pulls downward, not typically used to change horizontal direction.
- C: pull → Possible, but not specified.
- D: push → Also possible.

Wait — actually, since the question doesn’t specify whether he’s pushing or pulling, but asks what force he’s *using*, and both push and pull are types of forces… but only one option can be chosen.

Actually, let’s think again — maybe this is from a diagram we can’t see? But based on standard questions like this, if someone changes the direction of a ball (like kicking it or hitting it), they’re usually applying a push.

Also, note: “push” and “pull” are both valid forces, but in many contexts, especially sports or games, changing direction often involves a push (like kicking a soccer ball).

But wait — option C is “pull”, D is “push”. Without more info, we might guess — but actually, in most textbook examples, when someone changes the direction of a ball by hand or foot, it’s considered a push.

However, let’s check logic: If Willis is throwing or kicking the ball to change its direction, that’s a push. If he’s grabbing and yanking it, that’s a pull. Since it’s not specified, perhaps the best general answer is D: push, because it’s more common in such scenarios.

Alternatively — maybe the question expects us to know that any contact force that changes motion is either push or pull, and since “force” is defined as push or pull, and the question says “what force is Willis using”, then either could work — but only one is listed correctly?

Wait — looking back, perhaps there’s a trick. Actually, in many curricula, when you change the direction of a ball by hitting it, it’s called a push.

I’ll go with D: push.

But hold on — let me double-check. Maybe the intended answer is “push” because it’s active application.

✔ Final choice for Q3: D

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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 the wagon → He’s applying a force.
- Ginger is pushing the wagon → She’s also applying a force.
- Alice is inside the wagon → Is she applying a force? Well, her weight is acting on the wagon (gravity), so technically yes — but the question may mean “actively applying a force to move it”. However, even sitting, she exerts downward force due to gravity.
- Evan is walking beside them → He’s not touching the wagon, not pushing or pulling it. So he’s NOT applying any force to the wagon.

So, Evan is the one not placing a force on the wagon.

✔ Answer: A: Evan

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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 they’re applying are equal and opposite — so they cancel out. This is called balanced forces.

Options:
- A: gravity and friction → These are present, but not why they’re not moving.
- B: balanced forces → YES! Equal forces in opposite directions = no movement.
- C: unbalanced pulls → Unbalanced would mean one side wins and moves.
- D: push and pull → Tug-of-war is all pulling, not pushing.

✔ 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?

Now, one team is winning — they’re pulling the other team over. That means the forces are NOT equal — one side is stronger. This is called unbalanced forces.

Options:
- A: gravity and friction → Not relevant here.
- B: pushes and friction → No pushing involved; it’s pulling.
- C: balanced forces → Balanced means no movement — but here, movement happened.
- D: unbalanced forces → YES! One side overpowered the other.

✔ Correct answer: D

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Final Answers:

1. A
2. C
3. D
4. A
5. B
6. D