Ever-changing or ever changing

When you throw an orange up into the air what kind of enery increases as its height increases? What rider do you move first to find the mass of an object using the triple beam balance? 1 tola gold equals to how many grams? What is the amount of charge passing a gieven point ever second called? What type of force holds a book on a sloped desk? How does a Kenmore progressive vacuum cleaner work? Do cars have cells? Does resolving a vector involve breaking the vector into two components? What force always pulls down wards and 6 letters long? Is physics the branch of science that involves the study of physical phenomena in order to establish patterns? Two types of energy that exsits on the electromagnetic spectrum? What is oil vacuum? Why an object move when the force are equal and opposite? What is a maspectometer? What is the uniform acceleration that causes a train velocity to change from 25M's to 75M's in an 5.0period? How does the elasticity of a medium affect the speed of a wave? Can the Sun be considered as a perpetual motion machine? How much water you get from 220 pouds of ice? Abbrevation of psi? What was the first human invention to break the sound barrier?

Ever-changing or ever changing?