Force and Pressure– 3_2

Why the tools meant for cutting and piercing always have sharp edges? What is the first sentence of the video?

• Topic: Pressure.: Why is it difficult to cut with a blunt knife?

• It Seems like you are hungry. Why don't you have an apple?

• No. Don't use the blunt knife. Use the sharp knife.

• Looks like you want to go ahead with the blunt knife only.

• See, you are finding it difficult to cut the apple now.

Why the tools meant for cutting and piercing always have sharp edges? What is the second sentence of the video?

• Now, try cutting with the sharp knife. Look. The apple gets cut very easily. Confused, right?

• It Seems like you are hungry. Why don't you have an apple?

• No. Don't use the blunt knife. Use the sharp knife.

• Looks like you want to go ahead with the blunt knife only.

• See, you are finding it difficult to cut the apple now.

Why the tools meant for cutting and piercing always have sharp edges? What is the third sentence of the video?

• Now, try cutting with the sharp knife. Look. The apple gets cut very easily. Confused, right?

• Let me explain. All this happens due to a concept called pressure.

  
  

• No. Don't use the blunt knife. Use the sharp knife.

• Looks like you want to go ahead with the blunt knife only.

• See, you are finding it difficult to cut the apple now.

Why the tools meant for cutting and piercing always have sharp edges? What is the fourth sentence of the video?

• Now, try cutting with the sharp knife. Look. The apple gets cut very easily. Confused, right?

• Let me explain. All this happens due to a concept called pressure.

• What is Pressure? It is the force applied per unit area.

  
  

• Looks like you want to go ahead with the blunt knife only.

• See, you are finding it difficult to cut the apple now.

Why the tools meant for cutting and piercing always have sharp edges? What is the fifth sentence of the video?

• Now, try cutting with the sharp knife. Look. The apple gets cut very easily. Confused, right?

• Let me explain. All this happens due to a concept called pressure.

• What is Pressure? It is the force applied per unit area.

• That means the pressure will be directly proportional to force and inversely proportional to area.

• See, you are finding it difficult to cut the apple now.

Why the tools meant for cutting and piercing always have sharp edges? What is the sixth sentence of the video?

• Now, try cutting with the sharp knife. Look. The apple gets cut very easily. Confused, right?

• Let me explain. All this happens due to a concept called pressure.

• What is Pressure? It is the force applied per unit area.

• That means the pressure will be directly proportional to force and inversely proportional to area.

• Now, we applied the same amount of force on both knives.

Why the tools meant for cutting and piercing always have sharp edges? What is the seventh sentence of the video?

• Then, why was the result different?

• Let me explain. All this happens due to a concept called pressure.

• What is Pressure? It is the force applied per unit area.

• That means the pressure will be directly proportional to force and inversely proportional to area.

• Now, we applied the same amount of force on both knives.

Why the tools meant for cutting and piercing always have sharp edges? What is the eighth sentence of the video?

• Then, why was the result different?

• This is because the area on which the force acted was different.

• What is Pressure? It is the force applied per unit area.

• That means the pressure will be directly proportional to force and inversely proportional to area.

• Now, we applied the same amount of force on both knives.

Why the tools meant for cutting and piercing always have sharp edges? What is the ninth sentence of the video?

• Then, why was the result different?

• This is because the area on which the force acted was different.

• In the case of a blunt knife, the cutting edge is thicker.

• That means the pressure will be directly proportional to force and inversely proportional to area.

• Now, we applied the same amount of force on both knives.

Why the tools meant for cutting and piercing always have sharp edges? What is the tenth sentence of the video?

• Then, why was the result different?

• This is because the area on which the force acted was different.

• In the case of a blunt knife, the cutting edge is thicker. That means the area is larger.

• As a result, the force of our hand falls over a larger area of the knife, producing lesser pressure.

• Now, we applied the same amount of force on both knives.