What Makes Things Move?

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

friction
inertia

Materials Needed

string
weights
tape
ruler
cardboard
marbles

Safety First

Protect your work surface with newspaper or plastic.

Steps

Step 1 — Read

Read the introduction and identify the main idea of this lesson.

Step 2 — Do

Create a Rube Goldberg machine with at least 5 steps that demonstrates energy transfer from one form to another.

Step 3 — Observe

Watch carefully for any changes and note the time.

Step 4 — Record

Create a data table to organize your measurements.

Check Your Understanding

Question 1

1 of 3

What form of energy does food contain?