Category: Physics

What do you expect to find at a mid ocean? Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt. Which discovery did they make about rocks in relation […]

What are the four types of causal relationship?  If a relationship is causal, four types of causal relationships are possible: (1) necessary and sufficient; (2) necessary, but not sufficient; (3) sufficient, but not necessary; and (4) neither sufficient nor necessary. What is meant by causal relationship? A causal relationship exists when one variable in […]

What number of the month are we on? All months have 30 or 31 days, except for February which has 28 days (29 in a leap year). Every fourth year, the month of February has 29 days instead of 28. This year is called a “leap year” and the 29th day of February is a […]

Is the symbol for chlorine Cl or CI? Chlorine is a chemical element with symbol Cl and atomic number 17. Classified as a halogen, Chlorine is a gas at room temperature….Chlorine. Atomic Mass 35.45u Year Discovered 1774 What is the classification for chlorine? Chlorine is in group 17 of periodic table, also called the halogens, […]

What Hall voltage is produced by a 0 What is Hall effect and Hall voltage? The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor that is transverse to an electric current in the conductor and to an applied magnetic field perpendicular to the current. It was discovered […]

What is the correct order highest temperature on top for stellar classification? The seven main types are M, K, G, F, A, B and O. M stars are the coldest stars and O stars are the hottest. What is the main sequence stage? The main sequence is the stage where a star spends most of […]

What is the formula for projectile motion? h = v 0 y 2 2 g . This equation defines the maximum height of a projectile above its launch position and it depends only on the vertical component of the initial velocity. A rock is thrown horizontally off a cliff 100.0 m high with a velocity […]

What is F MA Math? The famous formula is: F = ma. “Newton’s Second Law of Motion” (F is force, m is mass and a is acceleration) Do you need calculus for F MA? F=ma does not require any Calculus background. It is a test designed to challenge your understanding and intuitive on the most […]

Is the starter relay supposed to click? The starter relay not only completes the electrical circuit, but it also boosts the battery’s current. If your starter relay has gone bad, the electrical signal will never make it from the battery to the starter motor. A faulty relay often produces an audible clicking sound when you […]

Does increasing effect size increase power? The statistical power of a significance test depends on: • The sample size (n): when n increases, the power increases; • The significance level (α): when α increases, the power increases; • The effect size (explained below): when the effect size increases, the power increases. Why does increasing the […]