Question

Choose which force is at work in each device. Each column contains exactly two answers. (4 points)
Magnetic force is use. Electric force is used.

A door latch on a kitchen cabinet

Two socks stuck together coming out of the dryer

A directional compass

An air filter that traps dust and ion particles

Answer 1

Here’s the classification of the devices based on the forces at work:

1. **A door latch on a kitchen cabinet** - **Magnetic force is used.**
2. **Two socks stuck together coming out of the dryer** - **Electric force is used.**
3. **A directional compass** - **Magnetic force is used.**
4. **An air filter that traps dust and ion particles** - **Electric force is used.**

So, the pairs are:

- Magnetic force is used: A door latch on a kitchen cabinet, A directional compass
- Electric force is used: Two socks stuck together coming out of the dryer, An air filter that traps dust and ion particles