Category: Physics

What are the uses of SI units? The International System of Units, universally abbreviated SI (from the French Le Système International d’Unités), is the modern metric system of measurement. Long the dominant measurement system used in science, the SI is becoming the dominant measurement system used in international commerce. What are SI units used for? […]

Does a shorter barrel make a gun louder? shorter barrels are always louder because the muzzle is closer to your ears!!! Because the sound as measured at the barrel is louder in the short barreled gun. The amount it is reduced by holding it further away does not completely counter act the extra noise it […]

How do you prove a line of best fit? A line of best fit can be roughly determined using an eyeball method by drawing a straight line on a scatter plot so that the number of points above the line and below the line is about equal (and the line passes through as many points […]

What is an example of character motivation? For example, Katniss Everdeen in The Hunger Games is motivated to volunteer for her sister, because she wants to protect her (external) and because she could not live with herself if she did not (internal). It’s good to show how human your character is by throwing in an […]

Do boats flip easily? Bad Weather Small boats are easily overwhelmed by modest waves or even wake, especially if they’ve got a full load and sit low in the water. A sudden squall can flip even a larger boat. If you’re caught out in a squall, have your passengers stay low near the center of […]

What is the different types of force? Action-at-a-Distance Forces Applied Force. Gravitational Force. Normal Force. Frictional Force. Air Resistance Force. Tension Force. Spring Force. How does force affect our daily life? of effects): they can change the direction of an object, they can change the speed of an object, and they can change the shape […]

When driving down a steep downgrade You should never? Terms in this set (105) When driving down a steep downgrade, YOU SHOULD NEVER: Shift to NEUTRAL. What 2 main things must you do with your vehicle for a steep downgrade? The vehicle should be placed in a low gear and the driver should use engine […]

What are the features of a good hypothesis? Characteristics & Qualities of a Good Hypothesis Power of Prediction. One of the valuable attribute of a good hypothesis is to predict for future. Closest to observable things. A hypothesis must have close contact with observable things. Simplicity. Clarity. Testability. Relevant to Problem. Specific. Relevant to available […]

What is the area and circumference of the circle? In geometry, the circumference (from Latin circumferences, meaning “carrying around”) of a circle is the (linear) distance around it. That is, the circumference would be the length of the circle The area of a circle is pi (approximately 3.14) times the radius of the circle squared. […]

Which sprocket is faster? For more bottom end and faster acceleration, use a small countershaft/front sprocket or large rear sprocket. For every 1 tooth that you change on the front sprocket is like changing 3 to 4 teeth on the rear (and that’s true for higher gearing ratios, too). How does changing sprocket size affect […]