Category: Physics

Which is the correct order of the steps for cleaning and sanitizing wash sanitize rinse air dry? rinse, scrape, or soak items before washing them. wash items in the first sink. rinse items in second sink. sanitize items in third sink. air dry items on a clean and sanitized surface. What are the 2 methods […]

What force acts on the marble to slow it to a stop? Friction What was the force that was acting on the marble? A “push” centripetal force acted on the marble: this force, supplied by the bottom of the cup, kept the marble going in a circular path and not flying away in a straight […]

How are convex lenses used in everyday life? They are used to make telescopes. 1) Convex lens is used in microscopes and magnifying glasses to subject all the light to a specific point. 2) Convex lens is used as a camera lens in cameras as they focus light for a clean picture. 3) Convex lens […]

What gives your skin color? Your skin gets its color from a pigment called melanin. Special cells in the skin make melanin. When these cells become damaged or unhealthy, it affects melanin production. How can I increase melanin in my hair? Can certain foods boost melanin growth in hair? Foods rich in antioxidants. Many foods […]

How 2020 is a unique leap year? 2020 is a unique Leap Year. It has 29 days in February, 300 days in March and 5 years in April. May may never never end end. Why is February called February? February is named after an ancient Roman festival of purification called Februa. The Roman calendar originally […]

Is rural living safe? Compared to cities and suburban areas, rural locations are the most dangerous places to live. A study found that “your risk of death is actually about 22 percent higher in the most rural counties in America than in the most urban ones.” Death rates in the exurbs are higher for a […]

What is tertiary motion? Tertiary motion is sequence motion. It is determined by the specific use oi one or several ofthese transition devices: the cut, the jump cut, the dissolve, the wipe, the fade, and special transitional effects. The cut is an instantaneous change from one image to another. What are the primary motions? For […]

How many circles do you need to balance the scale? Since there are 3 purple circles, we need 3 × 2 = 6 3 \times 2 = 6 3×2=6 green squares in order to balance the scale. What is a balance beam scale? A device for weighing. It has a balanced beam and two pans. […]

What will happen if a house do not have a vent system? It can make our homes “sick”, with condensation and mould damaging the walls and fabric of our houses. But, more importantly, it can make the occupants sick. High humidity levels can affect allergies and complicate respiratory diseases brought on by certain biological agents […]

What products increase friction? There are two methods of increasing friction: one is by making the surfaces rough and the other by increasing the mass of the object that is moving. For example, the tyres of vehicles have treads (these are the ‘designs’ that you can see on the tyre surface), which increase the friction […]