Density And Pressure
Akopọ
A drawing pin and an elephant's foot can push with very different forces, yet the pin is the one that goes through the board. The difference is not the force at all, it is how much area that force is spread over.
In this lesson you will learn how to calculate density and pressure, why a sharp point concentrates a force so effectively, and why the pressure at a point inside a still liquid or gas pushes equally hard in every direction.
Awọn Afojusun
- Know and use the relationship between pressure, force and area: p = F/A
- Understand how the pressure at a point in a gas or liquid at rest acts equally in all directions
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Density And Pressure. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- The equation for pressure is: A) p = F x A B) p = F / A C) p = A / F D) p = F + A Answer: B
- The density of a material is calculated using: A) volume / mass B) mass x volume C) mass / volume D) mass + volume Answer: C
- A force of 200 N acts on an area of 0.50 m squared. The pressure is: A) 100 Pa B) 200 Pa C) 400 Pa D) 0.0025 Pa Answer: C
- The pressure at a point in a liquid at rest: A) Acts only downwards B) Acts only sideways C) Acts equally in all directions D) Acts only on the container base Answer: C
- A block of mass 500 g has a volume of 250 cm cubed. Its density is: A) 0.5 g/cm cubed B) 2 g/cm cubed C) 125 g/cm cubed D) 750 g/cm cubed Answer: B
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Density And Pressure? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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