Push and Pull Forces (Part 3)

What You'll Learn

A force is a push or pull that can change an object's motion, shape, or direction. Forces are measured in Newtons and can act through contact or at a distance.

Key Words

simple machine
lever
pulley

Materials Needed

string
weights
tape
ruler
cardboard

Safety First

Adult supervision recommended.
Do not taste any materials.

Steps

Step 1 — Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 — Do

Build a simple motor using a battery, magnet, wire, and paper clip supports. Observe how electromagnetic forces create rotation.

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

What is an electromagnet?