Things that weigh 1 kilogram

How can you Write as a fraction the relationship of the thinnest layer to the thickest layer? What is the wavelength of a light of frequency 4.47x 1014Hz? What do you call the part when you blow into it on a balloon? What type of radiation has the least ability to penetrate matter? When two equal and opposite vectors are added their resultant vector has zero magnitude what is the direction of this resultant? How do robot vacuums work? Why does sound travel faster through hot water? When an object's distance from another object is changing is what? What does monochromatic? What is thermal conductivity of a bad conductor by Lee's disc method? What happens when thermostat fail? An object made or altered by humans? What is the opposite of translusent? What is the trade off when using and pulley? What is the radioactive form of carbon? In what phase of matter is argon at room temperature? If light passes into a more dense material does it bend away from the normal? How does washing machine operates? How do you work out joules? What term describes the ratio of the force and the area on which it acts?

Things that weigh 1 kilogram?