SCI FUN T.JOHN M3 FINAL COVERAGE Question Preview (ID: 20422)
Final Coverage.
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When a force acts to move an object, we say that _______ was done
a) Force
b) Work
c) Constant
d) Nothing
We say Work is a scalar or has a vector quantity. What does it mean?
a) Has force
b) Has time
c) Has direction
d) Has whatever
A type of energy that is stored and waiting to be used later.
a) Potential Energy
b) Kinetic Energy
c) Work Energy
d) Electrostatic Energy
A type of energy where in the energy of an object is relative to its motion.
a) Potential Energy
b) Kinetic Energy
c) Work Energy
d) Electrostatic Energy
Energy CANNOT be created NOR destroyed.
a) True
b) False
c) Not Really
d) It depends
We say energy can only be transformed. An example of chemical to motion is:
a) Electric Oven - baking cake
b) Khao Pad Kai - riding a bike
c) Computer - light and sound
d)
Another example of energy transformation is electric - thermal is.
a) Electric Oven - baking cake
b) Khao Pad Kai - riding a bike
c) Computer - light and sound
d)
As the speed goes UP the Kinetic Energy goes__________.
a) Down
b) Up
c) Constant (never change)
d)
If the Kinetic Energy goes UP, Potential Energy goes__________.
a) Down
b) Up
c) Constant (never change)
d)
Potential Energy and Kinetic Energy may vary, but Total Energy remains____________.
a) Down
b) Up
c) Constant (never change)
d)
Calculate the WORK done, If a man pushes a concrete block 10 meters with a force of 20 N.
a) 20 Joules
b) 200 Newton
c) 200 Joules
d)
How much POWER will it take to move a 100 N mass at a distance of 30 meters in 3 seconds?
a) 10 Newton
b) 100 Joules
c) 1000 Watts
d)
Calculate the POTENTIAL ENERGY of an ice buildup on a mountain with a mass of 3000 kg at a height of 10 meters.
a) 294,000 Joules
b) 30,000 Joules
c) 300 Watts
d)
Calculate the ELECTRIC CURRENT if a total charge of 300 Coloumbs was felt in the swimming pool for 1.5 minutes.
a) 4,500 Joules
b) 3.33 Ampere
c) 33.3 Volts
d)
if you present your science project next week, you don't have to answer questions about electricity on your finals
a) True
b) False
c)
d)
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