 1. Word cloud
120 seconds
What is the difference between force and pressure?
2. Slide
60 seconds
to understand basic concept of force magnitude direction and its effects to differentiate different types of force Understand the concept of pressure To learn about the nature of pressure and its relationship with force and area.
learning objective
3. Slide
60 seconds
*force *contact force non contact force
keywords
4. Slide
60 seconds
identify actions as push or pull
activity 11
5. Slide
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defined as a push or a pull of an object. .
force
6. Slide
60 seconds
Force is an external agent capable of changing a body’s state of rest or motion. It has a magnitude and a direction. The direction towards which the force is applied is known as the direction of the force, and the application of force is the point where force is applied.
7. Slide
60 seconds
The Force can be measured using a spring balance. The SI unit of force is Newton(N)
8. Slide
60 seconds
Magnitude refers to the measurement of the strength/amount of the applied force.
What is the Magnitude?
9. Slide
60 seconds
* When we apply force in the same direction, it adds to one another. When we apply force on an object from two different directions then it creates a difference between the two forces.
There are different forms of forces:
10. Slide
60 seconds
Force can change the state of motion Force can change the direction of the moving object Force can change the shape of an object
What are the Effects of a Force?
11. Slide
60 seconds
contact and non contact force
12. Slide
60 seconds
A contact force is any force that occurs as a result of two objects making contact with each other
contact force
13. Slide
60 seconds
Force resulting due to action of muscles is known as muscular force. For example, lifting, getting up from a seat, pushing a table
muscular force
14. Slide
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The frictional force definition states that it is the force that resists the motion of any two surfaces that are in contact
Friction
15. Slide
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A non-contact force is a force applied to an object by another body that is not in direct contact with it. Non-contact forces come into play when objects do not have physical contact between them or when a force is applied without any interactionn
A non-contact force
16. Slide
60 seconds
Magnetic force is a type of force between two objects that contain a magnetic field. These objects can be magnets or objects containing magnetic material. The force of attraction or repulsion between objects depends on the type of magnetic material.
What is Magnetic Force?
17. Slide
60 seconds
18. Slide
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An apple falling down from a tree is one of the best examples of non-contact force. Iron pins attracted in the presence of a magnet bar without any physical contact. Falling raindrops on earth is also an example of a non-contact force. The charging of the hair and attraction of paper bits towards it. Two magnets placed close to each other are also a non-contact force example.
Non-Contact Force examples from our daily life
19. Slide
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Answer: (a) shape (b) muscular (c) contact (d) gravity, friction
q no.4
20. Slide
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Answer: (a) Agents are fingers, object is lemon, effect of force changes the shape of lemon. (b) Agents are fingers of the person squeezing the tube, object is toothpaste tube and effect of the force can be observed as the paste coming out of the tube (change in shape). (c) Agent is the load suspended, object is the spring and effort can be seen in the form of elongation of spring on suspension of load (change in shape). (d) Agent is muscles of athlete, object is athlete himself and effect of the force changes the state of motion of the athlete
21. Slide
60 seconds
A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad. Answer: The forces that act when a rocket leaves launching pad are as follows: (i) Gravitational force of the earth (downward) (ii) Frictional force of air (in opposite direction)
22. Open question
70 seconds
What is the formula to calculate the magnitude of a force?
23. Poll
20 seconds
What is the unit of a force?
• NEWTON
• meter
• seconds
24. Open question
70 seconds
What is the formula to calculate the magnitude of a force?
25. Slide
60 seconds
The force acting an a unit area of surface is called pressure
PRESSURE
26. Slide
60 seconds
Why shoulder bags provide with broad straps not thin straps?
27. Slide
60 seconds
why porters place round a piece of clothes on their head?
real life example
28. Slide
60 seconds
The pressure exerted by this air is known as atmospheric pressure
atmospheric pressure
29. Poll
300 seconds
What happens to the pressure when the area increases?
• It increases
• It decreases
• It stays the same
• It becomes zero
30. Open question
70 seconds
31. Slide
60 seconds
32. Slide
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33. Slide
60 seconds
Force is the push or pull applied to an object to make it move or accelerate. Pressure is a measure of the force per unit area that is applied to an object. Force and pressure can be used to explain everyday phenomena such as wind, water flow and air pressure.
Force and Pressure
34. Open question
70 seconds
What is the formula to calculate the magnitude of a force?
35. Slide
60 seconds
Force - a push or pull on an object resulting from the object's interaction with another object Pressure - a measure of the force per unit area applied to an object Pressure gradient - the difference in pressure between two points in a fluid or gas
Concepts:
36. Slide
60 seconds
37. Poll
60 seconds
In what ways do forces and pressure affect our daily lives?
• They can help us move objects
• They can help us make things work
• They can help us understand the world around us
• They can help us stay safe
38. Slide
60 seconds
A force is also known as a 'push' or 'pull' and is measured in Newtons (N). Pressure is the force per unit area and is measured in Pascals (Pa). The pressure caused by a human finger is enough to make a dent in an apple.
Did you know?
39. Open question
300 seconds
What is the difference between force and pressure?
40. Open question
300 seconds
How can you use the concept of force and pressure in everyday life?
41. Open question
300 seconds
What have you learned about force and pressure so far?
42. Open question
300 seconds
What challenges have you faced while studying force and pressure?