Inertia copy 2
- 1. INERTIA PRESENTED BY AKHILA.G.K PHYSICAL SCIENCE ROLL NO: 1 GCTE, THYCAUD
- 2. Inertia is the property of matter that cause it to resist any change in its motion or state of rest
- 3. If the object is moving…. Inertia makes the moving object continue to move at a constant speed in the same direction unless some external force changes the object’s motion. This is known as inertia of motion.
- 4. If an object is at rest… It tends to stay in that position unless some force puts that object into motion. This is inertia of rest.
- 5. Inertia is not physical quantity and thus it does not have units The property of inertia is found from the Newton’s first law of motion
- 6. Newton’s First Law of Motion "An object at rest tends to stay at rest and an object in motion the same speed and in the same direction tends to stay in motion with unless acted upon by an unbalanced force"
- 7. Mass can influence the effects of inertia.
- 8. RELATIONSHIP BETWEEN MASS AND INERTIA An object with larger mass have larger inertia When mass increases inertia also increases
- 10. Applications of inertia Some examples of using inertia in our daily life are : 1. The looses head of a hammer • To tighten the loose head of a hammer, knock one end of the handle held vertically, on a hard surface. • The hammer head will continue on its downward motion • when the handle has been stopped, the top end of the handle is slotted deeper into the hammer head.
- 11. 2. The wet fur of cats and dogs. • Cats and dogs dry their wet fur by shaking their body vigorously. • Water droplets on the fur tend to continue in motion when the body has stopped shaking. • water droplets will be separated from the fur and fall away
- 12. 3. To dislodge sticking chili sauce • Chili sauce in a bottle is poured out by a quick downward movement of the bottle followed by a sudden stop. • The sauce in the bottle moves with the bottle during the downward movement. • When bottle is stopped, the inertia of the sauce causes it to continue on its downward movement and thus the sauce is forced out of the bottle.
- 13. 4. Passengers in a bus • Passenger in a bus will lurch backward when a stationary bus starts to move with forward acceleration. • The passenger were originally stationary. • When the bus started to move forward with an acceleration, the inertia in the passenger made them maintain their original position.
- 14. ANSWER When the cardboard covering the glass is pulled out quickly, what will happens to the coin?
- 15. When the cardboard covering the glass is pulled out quickly, the coin resting on the cardboard drops into the glass
- 16. What will happen to the rest of the coins when one of the coin is moved out quickly?
- 17. The inertia of the coins maintains it in its original position (at horizontal/rest) even when one of the coin is moved out quickly
- 18. THANKK YOU