Which of the following describes the effect of beam filtration on the x-ray spectrum? It increases the number of low-energy photons It decreases the average energy of the beam It increases the average energy of the beam It increases patient dose
33. What are the two ways that light quality can be characterized? direct or indirect light bright and dim light hard and soft light round and curved light
Hydroplaning is when __ you utilize water driving techniques in the rain to drift your wheels lose traction on the road and your car skids you engage your brakes over the water and drift your car glides over shallow water
The rays from the Sun that tan our skin are called __ infrared rays visible light ultraviolet rays gamma rays
As an electromagnetic wave travels through vacuum, it __ reduces in speed releases photons propagates as a transverse wave loses energy
Why are some EMR types invisible to human eyes? They travel faster Their wavelengths are too long or short They reflect light They absorb sunlight
What is the change in atomic number when an atom undergoes beta emission? Increases by 1 Decreases by 1 Increases by 2 Decreases by 2
What is the rest position of particles in a wave called? Crest Trough Equilibrium position Peak
Only __ nuclei disintegrate on their own, giving out radiation. stable unstable irregular spherical
Which of the following is a mechanical wave? Light wave Sound wave Radio wave Gamma wave
Fire the catapult at the lowest cup position What is the distance achieved? About 635 About 357
If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, what is being done? compression work radiation energy creation
Which word or phrase best describes entropy? disorder order kinetic energy force
What are most semiconductors made from? aluminum copper iron silicon
At which temperature does all molecular motion stop? OR $0^{\circ }C$ OK $0^{\circ }F$
Which statement about the volume and pressure of a gas is the most accurate? Volume of a gas is directly proportional to pressure of that gas in any container. Volume of a gas is inversely proportional to pressure of that gas in any container. Volume of a gas is always greater than pressure of that gas in any container. Volume of a gas is equal to pressure of that gas in any container.
CER: Make a claim about which type of material (dark or light)increases in temperature more when exposed to light energy Use evidence and scientific reasoning from class to support your answer. Your answer
In a transverse wave the wavelength can be measured as the distance between two adjacent compressions. TRUE FALSE
The slope of a linear velocity vs time graph tells us the __ of the object. displacement velocity speed acceleration
What is the first nucleus of an atom shown as? a fuzzy cloud a mass of protons and neutrons a solid mass surrounded by electrons a mass of protons
