Density And Pressure
Muhtasari
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.
Malengo
- 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
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Density And Pressure. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- 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
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Density And Pressure? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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