Circuits
circle with a v
In a longitudinal wave, compressions and rarefactions move in which direction relative to the wave?
Parallel to the direction of wave propagation.
What is the energy of motion of particles called?
Kinetic energy
Where is the tallest skyscraper in the world located?
Dubai
If the circuit is closed, is the switch open or shut?
Shut
In a transverse wave, the particles of the medium move in which direction relative to the wave?
Perpendicular to the direction of wave propagation.
Name the three main ways heat can be transferred.
Conduction, convection, radiation
How tall is the tallest person to ever exist
2.7m
What is the unit of electric current.
ampere (A)
what is an example of a transverse wave
water
Heat travels through a metal spoon in a hot cup of tea from the hot end to the cold end. This method of heat transfer is called?
Conduction
Which Canadian singer is known for hits like Sorry and Peaches?
A 12 V battery is connected across a resistor, and 3 A of current flows. This is the value of the resisto
4 Ω
A wave has a wavelength of 2 m and a frequency of 5 Hz. Calculate the speed of the wave.
10 m/s
arm air rises and cold air sinks, creating a circular movement that transfers heat in fluids. What is this called?
Convection
What unusual French delicacy is known as escargot?
snails
A 12 V battery is connected to two resistors in series: 4 Ω and 8 Ω.
1A
How would you measure 1 wavelength in a longitudinal wave?
compression to compression= 1 wavelength
metal pan and a wooden spoon are placed in a hot oven. After 5 minutes, the pan is very hot, but the wooden spoon is still relatively cool. Explain this difference using particle theory and the concepts of kinetic energy and heat transfer.
In the metal pan, particles are closely packed and can transfer kinetic energy quickly through vibrations. This means heat moves efficiently by conduction, so the pan gets hot fast.
In the wooden spoon, particles do not transfer kinetic energy as effectively because wood is an insulator. Heat moves more slowly, so the spoon stays cooler.
What is the smallest country in the world by land area?
Vatican City