WorksheetsYear 9 KO Review Cycle 3 Week 1
Total questions: 10
Worksheet time: 5mins
Waves transfer_________ without transferring _______
(a)
In a transverse wave, is the direction of the particles parallel or perpendicular to the direction of the energy transfer?
Parallel
Perpendicular
What is the name of the other wave type apart from transverse wave?
Longishootinal
Long
Longitudinal
Long-ish
Choose the correct equation that links together wave speed, wavelength and frequency
wave speed, v (m/s) = wavelength, λ (m) / frequency, f (Hz)
wave speed, v (m/s) = wavelength, λ (m) x frequency, f (Hz)
wavelength λ (m) = wave speed, v (m/s) x frequency, f (Hz)
wavelength λ (m) = wave speed, v (m/s) / frequency, f (Hz)
When a wave enters a more dense medium, does it slow down or speed up?
Slow down
Speed up
Which of the options below is NOT a way to increase the rate of a reaction?
Increased pressure
Increased concentration
Decreased surface area
Increase temperature
How does a catalyst speed up the rate of a reaction?
It increases the temperature
It changes the concentration
It lowers the activation energy
It raises the activation energy
What is an isotope?
An element with the same number of protons but a different number of electrons.
An element with the same number of protons but a different number of neutrons
An element that has a charge
An element that has the same number of neutrons but a different number of protons
Fluorine has 9 electrons. Which electron structure/configuration below is correct for fluorine?
1,8
1,8
2,6,1
2,7
Why are atoms neutral overall?
Because they have equal numbers of all particles
Because they have equal numbers of protons and neutrons
Because they have equal numbers of protons and electrons
Because they have equal numbers of neutrons and electrons
