1) The __________energy of an object increases with its height. a) chemical potential b) thermal c) kinetic d) gravitational potential 2) An object with KINETIC energy HAS to be.... a) lifted above the ground b) at rest c) moving d) changing direction 3) This law says that energy in a system can change forms but can NEVER be created or destroyed... a) consecration of energy b) conservation of energy c) conversion of energy d) construction of energy 4) The KINETIC energy of an object increases as its _______________increases. a) height b) speed c) volume d) potential energy 5) How much FORCE would you need to lift a boulder a vertical distance of 10 m if 90 J of work were done? Hint: F= w/d a) 900 J b) 9 J c) 10 J d) 100 J 6) You drop a tennis ball and it bounces and rolls until it finally stops. Why does it stop? a) All of the ball's energy is eventually converted to kinetic energy when it stops. b) Some of the ball's energy is lost. c) Some of the ball's energy is converted to other energy. d) All of the ball's energy is eventually converted to potential energy when it stops. 7) Heat moves from areas that are __________ to areas that are ____________. a) high temp to low temp b) low temp to high temp c) medium temp to low temp d) high temp to high temp 8) Energy stored in food is considered: a) kinetic potential b) chemical potential c) thermal d) gravitational potential 9) CONDUCTION is the transfer of heat by.... a) electromagnetic waves b) direct contact c) density differences d) gravity 10) What is an example of energy converting from KINETIC to THERMAL? a) Netflix show b) rubbing your hands together on a cold day c) a flower blooming d) the force of gravity 11) The law of conservation of energy mean that when a coconut falls from a tree, the mechanical energy: a) decreases b) increases c) remains constant d) doesn't exist 12) The rate at which work is done is called: a) power b) force c) efficiency d) momentum 13) A material that RESISTS or limits the flow of conduction, convection, and radiation is_______ a) conductor b) insulator c) radiator d) generator 14) The formula for GPE (greatest potential energy) is... a) spam b) bacon c) ham d) roast beef 15) If you were riding on a rollercoaster, which point of the ride would have the highest GPE? a) the climb b) the ride to the bottom c) the highest point of the ride d) the starting point of the ride 16) When we measure TEMPERATURE, we are really measuring the average of _______ in a material. a) chemical energy b) kinetic energy c) mechanical energy d) potential energy 17) Which picture shows CONVECTION? a) b) c) 18) Which picture shows RADIATION? a) b) c) 19) The formula for KINETIC ENERGY is: a) KE= mv b) KE =mv2 c) KE =1/2mv2 d) KE= 2mv2 20) I drop my ice cream cone...what's happening to its GPE and KE as it falls? a) GPE down, KE down b) GPE down, KE up c) GPE up, KE down d) GPE up, KE up 21) When we plug our hair flat iron into the wall, then we know that it is: a) converting electrical energy to thermal energy b) converting electrical energy to mechanical energy c) awesome for our hair d) converting heat energy into electrical energy 22) Is WORK being done when I hold my 150 pound bloodhound in my arms? a) yes, because you are holding it b) yes because I said so c) No, because it is NOT being moved (W=f x d, there is no distance!) d) No, because the dog is adorable 23) What do I ALSO need to do today to prepare for tomorrow? a) all the formulas b) practice problems with formulas c) make my notecard d) go through my review e) all of the ABOVE!

IPC Final Review-Part 2: Energy

от
Внедрить

Таблица лидеров

Визуальный стиль

Параметры

Переключить шаблон

Восстановить автоматически сохраненное: ?