Pushes and pulls are forces. They can make things start moving, stop, speed up, slow down or change direction. Friction slows things down, and gravity pulls everything towards the ground.
Apa yang akan dipelajari anak anda
- Sort everyday actions into pushes and pulls
- Know that forces can start, stop and change the direction of movement
- Know that rough surfaces slow things down more than smooth ones
- Know that gravity pulls things down
Forces all around
Kicking a ball is a push. Opening a drawer is a pull. A bigger push makes a ball go faster and further. When a ball rolls on grass it slows down sooner than on a smooth floor, because friction from the rough grass works against it.
Contoh soalan
Berikut ialah beberapa soalan seperti dalam misi pertama. Bolehkah anda menjawabnya?
1. What happens to a ball if you push it harder?
- It goes faster and further
- It stops
- It changes colour
- It gets smaller
Tunjuk jawapan
Jawapan: It goes faster and further. A bigger push means more speed.
2. Which of these is a pull?
- Squashing a sponge
- Kicking a ball
- Pressing a button
- Pulling up your socks
Tunjuk jawapan
Jawapan: Pulling up your socks. You pull your socks up.
3. Is taking a tissue out of a box a push or a pull?
- A push
- A pull
Tunjuk jawapan
Jawapan: A pull. You pull the tissue out towards you.
Tip untuk orang dewasa
- Roll a toy car down a ramp onto carpet, then onto a smooth floor. Which goes further?
- Sort toys into “push” toys and “pull” toys.