Classic Classic Quiz Energy and Machines by Jena.13 Jena.13 505 played - 13 yrs ago 4th grade Science Test-Energy and Machines QUIZ 16 QUESTIONS medium 1 What is the ability to do work called? LoadEnergyForce 2 When wood is burned, stored energy changes to Mechanical energyHeat energyHeat and light energy 3 What is stored energy called? Heat energyPotential energyKinetic energy 4 How does a lever help do work? By saving energyBy increasing the force neededBy decreasing the force needed 5 A compound machine is made up of A fulcrumTwo or more simple machinesAn inclined plane 6 What kind of energy does a baseball hit by a bat have? Mechanical energyHeat energyElectrical energy 7 Which can change ELECTRICAL energy to SOUND energy? RadioOvenFire 8 Which one is the energy of MOTION? Potential energyKinetic energyWork 9 Why is a fixed pulley useful? It saves energyIt changes the direction of a forceIt decreases the force needed to lift an object 10 What does a battery hold? Kinetic energy that becomes heat energyPotential energyStored energy energy that becomes electrical energy 11 What kind of energy do food and fuels contain? Chemical energyElectrical energyLight energy 12 Which one is NOT an example of kinetic energy? Flying baseballBaseball at rest on the groundBaseball being thrown 13 Which one of these machines DOES NOT decrease force? Wheel and axleInclined planeFixed pulley 14 Which statement is NOT true? Wood changes from chemical to light energy.Wood changes from chemical to heat energy.Wood changes from chemical to electrical energy. 15 Which statement is NOT true? A radio changes electrical energy to sound energy.A battery changes chemical energy into potential energy.A boy on a rope is an example of potential energy. 16 Which list includes the simple machines that make up a can opener? Inclined plane, lever, and wheel and axleLever, fixed pulley, and wheel and axleInclined plane, wedge, fixed pulley A mistake in this Quiz ? Contact the author Commentaires
