Category: Physics

What do you call the path of a projectile? Projectile motion is a form of motion where an object moves in a bilaterally symmetrical, parabolic path. The path that the object follows is called its trajectory. What force arises from direct physical contact between two objects? Contact forces are those types of forces that result […]

Where is urine not modified? The kidneys are the only means for eliminating the wastes that are the end products of protein metabolism. They do not themselves modify the waste products that they excrete, but transfer them to the urine in the form in which they are produced in other parts of the body. Do […]

How do you find the PD between two points? The potential difference between two points ΔV is often called the voltage and is given by ΔV=VB−VA=ΔPEq Δ V = V B − V A = Δ PE q . The potential at an infinite distance is often taken to be zero. The case of the […]

Can you use PAM to grease a cake pan? Here are the top 8 things I use my Pam cooking spray for: 1) Spray Pam Cooking Spray on your bread pans, muffin tins and cake pans to prevent your breads and cakes from sticking to the side. Your food will slide out easier and you […]

At what height will surface tension kill you? Falling into water from about 245 ft. will be fatal for most people. The fatal results can vary from person to person and there are known cases of people dying from heights less than 200 ft. Do you have to break the surface tension of water? The […]

Are a pair of scissors a compound machine? A pair of scissors is a compound simple machine that uses levers to force wedges (scissors blades) onto something to cut it. Many machines have many simple machines as parts of them. Is a wheel and axle a compound machine? A compound machine is a machine that […]

What is the value of k in electrostatics? The symbol k is a proportionality constant known as the Coulomb’s law constant. The value of this constant is dependent upon the medium that the charged objects are immersed in. In the case of air, the value is approximately 9.0 x 109 N • m2 / C2. […]

What happens if you shine red light on a blue object? So what happens if you shine only red light onto a blue object? All of that red light gets absorbed and the blue object will seem to be dark, almost black. If you now shine a blue light onto that blue object all the […]

How reflected light can be reflected again? Reflected Light can be Reflected Again When two mirrors are placed opposite to each other, the first mirror reflects light that falls on its surface. The periscope makes use of this concept by using two plane mirrors. Periscopes are used in submarines, tanks and also by soldiers in […]

What are the 5 defense mechanisms? Both Freuds studied defence mechanisms, but Anna spent more of her time and research on five main mechanisms: repression, regression, projection, reaction formation, and sublimation. All defence mechanisms are responses to anxiety and how the consciousness and unconscious manage the stress of a social situation. How do you break […]