Worksheet teaching the concepts of forces, including push, pull, contact, non-contact, balanced, and unbalanced forces, with visual examples and interactive activities.

Let's solve the problem step by step based on the image you provided.

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1. Tick the words related to forces

We are given a list of words and need to identify which ones are related to forces.

Here’s the list:

- evaporation
- gravity
- volume
- non-contact
- push
- pull
- solution
- unbalanced
- magnetism
- balanced
- contact
- molecule

Now, let’s go through each word:

- evaporation → This is a change of state (liquid to gas), not a force. ✘
- gravity → A non-contact force that pulls objects toward each other. ✔
- volume → A measure of space; not a force. ✘
- non-contact → Refers to forces that act without touching (like gravity or magnetism). ✔
- push → A type of force. ✔
- pull → A type of force. ✔
- solution → A mixture in chemistry; not a force. ✘
- unbalanced → When forces are unequal, causing motion. ✔
- magnetism → A non-contact force. ✔
- balanced → When forces are equal and object doesn’t move. ✔
- contact → Forces that require physical touch. ✔
- molecule → A group of atoms; not a force. ✘

✔ Words related to forces:
- gravity
- non-contact
- push
- pull
- unbalanced
- magnetism
- balanced
- contact

> ✔ So, tick these 8 words.

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2. Select the type of forces for each scenario

We have 5 images with descriptions. For each, we must choose:
- Push / Pull
- Contact / Non-contact
- Balanced / Unbalanced

Let’s analyze each one:

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#### Image 1: Dog stopping a ball with its mouth
> "A push force stops the ball."

- Push → The dog is pushing the ball with its mouth. ✔
- Contact → The dog is touching the ball. ✔
- Unbalanced → The ball changes direction (stops), so forces are unbalanced. ✔

✔ Answer: Push, Contact, Unbalanced

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#### Image 2: Child pulling a school bag
> "A pull force moves the school bag."

- Pull → The child is pulling the bag. ✔
- Contact → The child is holding the handle. ✔
- Unbalanced → The bag is moving forward, so forces are unbalanced. ✔

✔ Answer: Pull, Contact, Unbalanced

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#### Image 3: Person pushing and pulling a swing
> "Push and pull forces speed up the swing."

- Push and Pull → Both actions are used. But the question asks to pick one. Since both are involved, but the main idea is motion due to applied forces, we can say it's both. However, the options are separate. Likely, they expect us to recognize both are involved, but since only one choice per category is allowed, and both are present, we may need to see what’s emphasized.

But looking at the options, we can pick:

- Push and Pull → both are used. But the format seems to allow only one selection per row. Since the description says “push and pull forces”, likely both are correct, but if only one is to be selected, it might be Push or Pull, but actually, both are needed.

Wait — look at the layout: under each image, there are multiple choices listed vertically. You are to select one from each column.

So, for this image:
- Push or Pull? → Both are used. But since the person pushes it forward and pulls it back, both are involved. But the action is both. However, the question allows selecting one. In such cases, often "Push" or "Pull" is acceptable depending on timing. But since it says "push and pull forces", perhaps the answer is both — but we can't select two.

Looking at the structure, maybe we just pick the most relevant.

But actually, the correct way is to realize that both push and pull are involved. But since only one option is selectable, and the question says “select the type”, perhaps it's expecting Push or Pull as the primary action.

However, in science, when someone swings a swing, they use both. But in many textbooks, the action is described as pushing.

Alternatively, perhaps the intended answer is:

- Push → because you push the swing to start it.
- Contact → hands touch the swing.
- Unbalanced → it speeds up, so forces are unbalanced.

✔ Answer: Push, Contact, Unbalanced

> Note: Even though pull is also involved, the dominant action shown is pushing.

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#### Image 4: Person walking a dog with a leash
> "A pull force slows down the dog."

- Pull → The person pulls the leash to slow the dog. ✔
- Contact → The leash is connected; there's physical connection. ✔
- Unbalanced → The dog is slowing down (changing speed), so forces are unbalanced. ✔

✔ Answer: Pull, Contact, Unbalanced

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#### Image 5: Ball being hit (e.g., tennis)
> "A push force changes the direction of the ball."

- Push → The racket applies a push force. ✔
- Contact → Racket touches the ball. ✔
- Unbalanced → Direction changes → motion changes → unbalanced forces. ✔

✔ Answer: Push, Contact, Unbalanced

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✔ Final Answers:

#### 1. Words related to forces (tick these):
- gravity
- non-contact
- push
- pull
- unbalanced
- magnetism
- balanced
- contact

(Leave others unticked)

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#### 2. Select the type of forces:

| Image | Push/Pull | Contact/Non-contact | Balanced/Unbalanced |
|-------|-----------|---------------------|----------------------|
| 1 | Push | Contact | Unbalanced |
| 2 | Pull | Contact | Unbalanced |
| 3 | Push | Contact | Unbalanced |
| 4 | Pull | Contact | Unbalanced |
| 5 | Push | Contact | Unbalanced |

> Note: For Image 3, although both push and pull are used, the description emphasizes “push and pull forces” but the action shown is likely a push to start or accelerate the swing. So Push is acceptable.

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✔ Summary:

Question 1: Tick the following:
- gravity
- non-contact
- push
- pull
- unbalanced
- magnetism
- balanced
- contact

Question 2:
1. Push, Contact, Unbalanced
2. Pull, Contact, Unbalanced
3. Push, Contact, Unbalanced
4. Pull, Contact, Unbalanced
5. Push, Contact, Unbalanced

Let me know if you'd like this formatted as a printable answer sheet!