Mass And Weight
Muhtasari
Step on a bathroom scale on Earth, then imagine doing the same on the Moon: the number would drop to about a sixth, yet you would still be made of exactly the same amount of stuff. That puzzle is the heart of this topic. Mass and weight feel like the same thing in everyday life, but in physics they are completely different quantities with different units.
Here you will learn to separate the two cleanly, define gravitational field strength, and use the equation that links weight to mass. By the end you will be able to calculate the weight of any object, explain why your mass never changes while your weight depends on where you are, and compare masses using a simple balance.
Malengo
- State that mass is a measure of the quantity of matter in an object at rest relative to the observer
- State that weight is a gravitational force on an object that has mass
- Define gravitational field strength as force per unit mass; recall and use the equation W g = m and know that this is equivalent to the acceleration of free fall
- Know that weights (and masses) may be compared using a balance
- [Supplement] Describe, and use the concept of, weight as the effect of a gravitational field on a mass
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 Mass And Weight. 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.
- Which statement about mass is correct? A. it is a force measured in newtons B. it changes on the Moon C. it is the quantity of matter, measured in kilograms D. it equals weight Answer: C
- An object of mass 5 kg is on Earth where g = 9.8 N/kg. Its weight is: A. 5 N B. 0.51 N C. 49 N D. 9.8 N Answer: C
- Gravitational field strength is defined as: A. mass per unit force B. force per unit mass C. weight times mass D. mass times acceleration Answer: B
- A 10 kg mass is moved from Earth to the Moon. Which quantity stays the same? A. weight B. gravitational field strength C. mass D. the force of gravity on it Answer: C
- The unit of gravitational field strength is: A. N B. kg C. N/kg D. m/s Answer: C
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 Mass And Weight? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
