Word energy power

Froggy Jumps

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Numericals and objectives related to chapter 2

Créé par

Susaretha Arha

India

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Word energy power


Froggy Jumps Word energy powerVersion en ligne Numericals and objectives related to chapter 2 par Susaretha Arha 1 Work is said to be done when a force is applied b object moves c force causes displacement 2 SI unit of work is a Newton b Joule c Watt 3 If displacement is zero, work is a maximum b minimum c zero 4 Energy is defined as a force × distance b capacity to do work c speed × time 5 Which has kinetic energy? a Stretched rubber band b Moving car c Lifted stone 6 Formula of work is a W = F ÷ d b W = F × d c W = F + d 7 Unit of power is a Watt b Newton c Joule 8 Potential energy depends on a mass & height b force & velocity c speed & height 9 Commercial unit of energy a Watt b kWh c Joule 10 Work done when force is perpendicular to displacement a Maximum b Infinite c Zero 11 Power is defined as a Force × time b Work ÷ time c Force × velocity 12 Which has potential energy? a Moving ball b Rolling wheel c Lifted book 13 Doubling velocity increases KE by a 2 times b 4 times c 6 times 14 A force of 10 N moves object 3 m. Work done = a 3 J b 10 J c 30 J 15 A body of mass 2 kg moves with 4 m/s. KE = a 16 J b 32 J c 8 J 16 Work done is negative when a force opposite direction b no displacement c no force 17 A machine does 600 J work in 3 s. Power = a 300 W b 200 W c 100 W 18 Which situation has zero work? a pushing wall b throwing ball c lifting box 19 Energy stored due to position is a heat energy b potential energy c kinetic energy 20 Which person is more powerful? a lifts 50 kg in 5 s b lifts 30 kg in 10 s c lifts 50 kg in 10 s

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Word energy power

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Word energy powerVersion en ligne

par Susaretha Arha

Work is said to be done when

SI unit of work is

If displacement is zero, work is

Energy is defined as

Which has kinetic energy?

Formula of work is

Unit of power is

Potential energy depends on

Commercial unit of energy

Work done when force is perpendicular to displacement

Power is defined as

Which has potential energy?

Doubling velocity increases KE by

A force of 10 N moves object 3 m. Work done =

A body of mass 2 kg moves with 4 m/s. KE =

Work done is negative when

A machine does 600 J work in 3 s. Power =

Which situation has zero work?

Energy stored due to position is

Which person is more powerful?