Kuvvetler kaynakları

Fizik, 8. sınıf. Bu bölüm için notlar, çalışma kâğıtları, videolar, interaktif araçlar ve tekrar materyalleri.

Çalışma kâğıtları

Pratik çalışma kâğıdı

Cevabı açmadan önce her soruyu dene — öğrenme tam da o zorlanmada olur.

1. State Newton's three laws of motion in your own words.
Think: keep doing what you're doing / F = ma / every action…

1) Objects keep their state of motion unless a resultant force acts. 2) F = ma — acceleration is proportional to resultant force. 3) Every action has an equal and opposite reaction.

2. A 2 kg trolley accelerates at 3 m/s². What is the resultant force?
F = ma. Watch the units.

F = 2 × 3 = 6 N.

3. Explain, using Newton's third law, how a rocket moves forward in space.
What does the rocket push on?

The rocket pushes exhaust gases backwards (action); the gases push the rocket forwards with an equal and opposite force (reaction). No air is needed.

4. A car of mass 1200 kg needs to accelerate at 2.5 m/s². The engine provides 4000 N. Is that enough? (Ignore other forces.)
Calculate the force actually required.

Required F = 1200 × 2.5 = 3000 N. 4000 N > 3000 N, so yes — with 1000 N to spare.

Videolar

İzle ve öğren

Her ders için anlaşılır bir video açıklaması bulmaya yönelik özenle seçilmiş aramalar.

Tekrar

Tekrar kontrol listesi

Bunların her birini bakmadan, sesli açıklayabilir misin? Yapamıyorsan o dersi yeniden oku.

  • Newton's 1st law: objects maintain their velocity unless a resultant force acts.
  • Newton's 2nd law: F = ma — resultant force equals mass × acceleration.
  • Newton's 3rd law: every action has an equal and opposite reaction.
  • Weight is a force (mass × gravitational field strength), measured in newtons.
  • Free-body diagrams show all forces acting on one object — draw them before calculating.

← Kuvvetler bölümüne dön