1.
A) joule B) volt C) ampere D) watt 2.
A) nuclear fusion B) glycolysis C) catabolism D) transformation of thermal energy into kinetic energy 3.
A) weight and speed of the object B) weight of the object and height above the ground C) shape and speed of the object D) shape of the object and its position relative to the ground 4.
A) a 900-kg car traveling 80 km/h B) a 1,100-kg car traveling 60 km/h C) a 2000-kg truck traveling 50 km/h D) a 300-kg motorcycle traveling 100 km/h 5.
A) when it leaves the bat B) when it reaches its highest point C) when it hits the ground D) when the mechanical and kinetic energies of the baseball are equal 6.
A) mass and position B) speed and mass C) speed and surface area D) speed and position 7.
A) energy is not created or destroyed and its form is constant B) energy cannot be created or destroyed C) when energy is transformed, the total energy of a system is less than it was before the change D) energy can be created and destroyed but cannot change form 8.
A) decreases B) is transferred out of the system C) increases D) remains constant 9.
A) used to increase an object's potential energy B) created or destroyed C) released as heat D) completely transformed 10.
A) Its kinetic and potential energies remain constant. B) Its kinetic energy decreases and its potential energy increases. C) Its potential energy decreases and its kinetic energy increases. D) Its mechanical energy increases. 11.
A) Potential energy B) Entropy C) Thermal energy D) Kinetic energy 12.
A) the unit of measurement describing the change in velocity in a unit time B) a unit of energy that depends on both an object's mass and velocity C) a unit measuring the amount of energy we get from various foods D) the unit of force required to move 1 kg of mass 1 m/s/s 13.
A) 147 J B) 15 J C) 3,675 J D) 375 J 14.
A) Elastic kinetic energy B) Chemical kinetic energy C) Gravitational potential D) Elastic potential energy 15.
A) a ball rolling across the floor B) a bowling ball knocking over a pin C) a glass sitting on a table D) a bicycle coasting down a hill 16.
A) triple B) not affect C) double D) quadruple 17.
A) 250 J B) 1,250 J C) 2,500 J D) 125,000 J 18.
A) 40 B) 400 C) 4 D) 14 19.
A) position and mass B) speed and surface area C) speed and mass D) speed and position 20.
A) 4 J B) 400 J C) 40 J D) 4,000 J
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