Unit 2 Mid Unit Review
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Éléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
amount of energy transferred per unit time.
measurement of power
movement toward/away from a reference point
displacement of an object due to force
measurement of work
a push or a pull
Slide 4 - Question de remorquage
device make of two or more simple machines
a sloping surface, used for raising heavy bodies.
force applied to a simple machine
Tea device with few or moving parts used to make work easier
force applied to an object by a machine
wheel with a grooved rim used with a rope or chain
Slide 5 - Question de remorquage
Slide 6 - Diapositive
work
power
joule
watt
Slide 7 - Question de remorquage
Slide 8 - Diapositive
Mark uses a wheelbarrow to haul flowers at his job as a landscaper. He pushes a 15 kg wheelbarrow a distance of 5 m with a force of 30 N. How much work does she do?
Slide 9 - Question ouverte
Doug dug a hole in his yard to repair a pipe. It took him 10 seconds
to apply a force of 300 N to push a shovel 1 m into the
ground. How much power was used?
to apply a force of 300 N to push a shovel 1 m into the
ground. How much power was used?
Slide 10 - Question ouverte
What simple machines are included in this compound machine?
A
levers/wedges
B
wheel and axle/lever
C
lever/pulley
D
wedge/pulley
Slide 11 - Quiz
How much work is done if a force of 25 N is applied 6 m?
Slide 12 - Question ouverte
What simple machines are included in this compound machine?
A
wheel and axle/levers/wedges
B
wheel and axle/lever/pulley
C
wedge/lever/pulley
D
wheel and axle/wedge/pulley
Slide 13 - Quiz
Determine how much power is used in 10 seconds if 5 N of force are used over 10 m.
