Exercises kinematics 3 and 4ESO

1. A particle moves from P (-2, 6) to Q (6,0) during 4s. Draw the problem and determine: a) displacement b)covered distance c) speed d) velocity

1. A lyon races at 90 km/h to hunt a zebra from 100m distance. After 2s, the zebra realises and races at 72km/h to scape. If the lyon can only stand the race along 1km, will it have lunch that day?
2. A canyon shots upwards at 1080 km/h. Tell the  maximun heigth og the bomb and the speed when it reaches these heigths: 100m, 500m, 1000m
   when 

Studying motion

Watch the film and answer the questions

• What different types of movement do they tell you about?
• How do we know we are moving?
• Why do things move?
• Explain the different type of forces they tell you about
• Do forces exist over an object which stands still? What happens to them?
• Why would a tiny force cause a card's house to collapse?
• What happens if forces are unbalanced?
• Explain the two ways they ecplain for winning a tug-of-war
• What other factors affect the balance?

Newton laws

The laws of Newton:

Watch the film and answer

• What do the Newton laws govern?
• Explain the 3 laws of Newton 
• Why doesn't earth notice forces created by people?
• Why doesn't earth move along a straight line?
• Why do bicycles stand still instead of falling?
• Why do helicopters have a tail rotor? 
• Why do planes fly?