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

Other questions on the subject: Physics

image
Physics, 22.06.2019 06:00, azaz1819
The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.
Answers: 2
image
Physics, 22.06.2019 10:20, yofavvlele
Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i. e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
Answers: 2
image
Physics, 23.06.2019 08:30, AutumnGarringer
Hi , i am new here can anyone me out with this question why is space black after having so many shining objects like sun , moon , stars
Answers: 3
image
Physics, 23.06.2019 12:30, Ladarius622
You have decided to host a discussion about post-traumatic stress disorder with the families of soldier abroad provide an over view of the disorder the symptoms and consequences of ptsd
Answers: 2
You know the right answer?
Which would be the most appropriate description of how energy is distributed when a torch is turned...

Questions in other subjects: