Pushes, pulls and force arrows
A force is a push or a pull. Forces can make things start moving, stop, speed up, slow down or change direction. We show a force with an arrow: the way it points shows the direction, and a bigger arrow means a bigger force.
Working with forces
Q1. Is each action a push, a pull, or both?
| Action | Push, pull or both |
|---|---|
| Opening a drawer | |
| Kicking a ball | |
| Pressing a doorbell | |
| Pulling up your socks | |
| Riding a swing |
Q2. Sort these forces into contact (needs touching) or at a distance (no touching): friction, gravity, a push, magnetism, a pull.
| Contact force | Force at a distance |
|---|---|
Q3. Draw the force arrows on this tug-of-war so that the left team wins. Remember: a bigger arrow means a bigger force.
Q4. Two teams pull a rope with equal force. Are the forces balanced or unbalanced? What happens to the rope?
Q5. Explain what unbalanced forces do to an object. Give one example.