Short Quiz in Science 8 describe how work is related to power and energy
Quiz by Quizalize Premium (Philippines)
Grade 8
Science
Philippines Curriculum: Grades 1-10
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5 questions
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- Q1Power is defined asWork per unit timeWork per unit lengthForce per unit lengthWork times time30sS8FE-Ic-21
- Q2According to the scientific definition of work, pushing on a rock accomplishes no work unless there isa net force greater than zero.an applied force greater than its weight.an opposing force.movement in the same direction as the force.30sS8FE-Ic-21
- Q3The metric unit of a joule (J) is a unit ofkinetic energy.all of the above.potential energy.work.30sS8FE-Ic-21
- Q4Power isthe rate at which energy is expended.work per unit of time.the rate at which work is done.any of the above.30sS8FE-Ic-21
- Q5You do work only when you exert a force on an object and move it.truefalsebothmaybe30sS8FE-Ic-21