subject
Physics, 06.03.2021 09:20 ysabel0420

Which would be the most appropriate description of how energy is distributed when a torch is turned on? A 70% light energy, 30% thermal energy
B 70% thermal energy, 30% electrical energy
C 65% light energy, 30% thermal energy
D 40% thermal energy, 55% light energy

1) Which of the following is a form of kinetic energy?
A Motion
B Chemical
C Elastic
D Nuclear

2) The energy we receive from the sun includes:
A electrical and sound energy.
B thermal and nuclear energy.
C electrical and light energy.
D thermal and light energy.

3) The petrol needed to make a car move is a form of:
A kinetic energy.
B chemical potential energy.
C thermal (heat) energy.
D elastic potential energy.
E gravitational potential energy.

4) When a bicycle skids to a stop, its kinetic energy is mostly transformed into:
A heat and sound.
B potential energy.
C sound energy.
D heat and light.

5) The faster an object moves:
A the more potential energy it has.
B the more kinetic energy it has.
C the faster its particles vibrate.
D the cooler it gets.

6) When you clap your hands, the kinetic energy is transformed into:
A heat and light.
B heat and potential energy.
C sound and heat.
D sound and elastic potential energy.

7) When you place a metal saucepan on the heating element of a stove, heat is transferred from the element to the saucepan by:
A reflection.
B convection.
C conduction.
D radiation.

8) Which of the following can be described as being luminous :
A Streetlights (turned on)
B A road sign
C The moon
D Water

9) In the burning of fireworks during New Year displays, chemical potential energy is converted into:
A heat, light and sound energy.
B light and sound energy.
C sound and heat energy.
D gravitational potential energy and light.

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 02:00
Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering
Answers: 2
question
Physics, 22.06.2019 18:00
Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?
Answers: 3
question
Physics, 22.06.2019 20:00
In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm
Answers: 1
question
Physics, 22.06.2019 20:00
Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?
Answers: 1
You know the right answer?
Which would be the most appropriate description of how energy is distributed when a torch is turned...
Questions
question
English, 21.04.2020 01:38
Questions on the website: 13722361