E. Answer the following questions,
1. What is pull and push?
2. What is force? Give three examples of force.
4. What are the different types of forces?
6. Write a short note on frictional force.
3. Mention any two effects of force with examples.
5. Which type of force was discovered by Sir Isaac Newton? Explain
Answers
Answer:
1.A push is the force that moves an object away from something, like when you push a plate of Brussels sprouts away in disgust. ... A push and a pull are opposite forces, meaning they move objects in different directions. Therefore, a pull is the force of bringing an object closer.
2. A force involves an interaction between two or more objects, and it causes a push or pull between the objects. ... Good examples of opposing force include drag due to interaction with an air mass and the force due to friction between two objects.
3. A force can move a stationary object. Example : The force of motor makes a stationery fan to move ( rotate).
A force can change the speed of a moving object. ...
A force can stop a moving object. ...
A force can change the direction of a moving object. ...
A force can change the shape of an object.
4. Action-at-a-Distance Forces
Applied Force.
Gravitational Force.
Normal Force.
Frictional Force.
Air Resistance Force.
Tension Force.
Spring Force.
5.Gravity
The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest.
6.Frictional force refers to the force generated by two surfaces that contacts and slide against each other. ... If an object is pushed against the surface, then the frictional force will be increased and becomes more than the weight of the object.
Hope it helps
Answer:
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Explanation:
1. A push is the force that moves an object away from something, like when you push a plate of Brussels sprouts away in disgust. ... A push and a pull are opposite forces, meaning they move objects in different directions. Therefore, a pull is the force of bringing an object closer.
2. A force is a push or pull acting upon an object as a result of its interaction with another object.Some examples of force are:
Gravitational force.
Electric force.
Magnetic force.
Nuclear force.
Frictional force.
3. Frictional Force refers to the force generated by two surfaces that contacts and slide against each other. These forces are mainly affected by the surface texture and quantity of force requiring them together. The angle and position of the object affect the volume of frictional force.
4. A force can move a stationary object. Ex-The force of engine makes a stationery car to move.
A force can stop a moving object. Ex-The force of brakes can stop a moving car.
A force can change the speed of a moving object. ...
A force can change the direction of a moving object.
5. Besides his work on universal gravitation (gravity), Newton developed the three laws of motion which form the basic principles of modern physics. His discovery of calculus led the way to more powerful methods of solving mathematical problems.