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What is the total useful energy ?
55 J
Which is the wasted energy?
Heat energy
Which is the Input energy?
Electrical energy
Fill in the blank
75J
Fill in the blank
90J
Identify the energy store : A hot iron straight from the heater.
Thermal energy
Identify the energy store : A charged mobile phone battery.
Chemical energy
Identify the energy store : A drawn bow (ready to shoot an arrow).
Elastic energy
Identify the energy store : A soccer ball flying through the air after being kicked.
Kinetic energy
State True or False : When an object falls, its kinetic energy increases and gravitational potential energy decreases.
True
State True or False : A stretched spring stores elastic energy.
True
State true or false: Wasted energy always becomes heat energy.
False
State true or false: Energy is created when a kettle boils.
False
Name the energy change is seen in this
Light energy to Chemical energy
Name the energy change is seen in this
Chemical energy to Thermal energy