What Makes Things Move? (Part 2)

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

lever
pulley

Materials Needed

paper clips
rubber bands
blocks
spring scale
stopwatch
pencils

Safety First

Be careful with scissors — ask an adult for help if needed.
Do not look directly at the sun or bright lights.

Steps

Step 1 — Read

Read and 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.

Step 2 — Do

Repeat the experiment two more times for accuracy.

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?