|
When matter or an object is in motion, we say it is using ____. A. positive energy B. kinetic energy C. potential energy D. stored energy A swing has potential energy if -- F. it is swinging up. G. it is swinging backwards. H. it is sitting still. J. it is in motion. This skateboarder will have the LEAST potential energyat point ___. A. A B. B D C. C D. D Which list names ONLY items that represent chemical energy? G. apple, sunlight, wood F. batteries, banana, gasoline H. bicycle, coal, seesaw J. electricity, batteries, sound Which list below names only examples of mechanicalenergy? A. bicycle, stroller, door B. lightning bolt, wires, static C. food, batteries, gasoline D. stars, sun, nucleus of an atom Which energy conversion is taking place in this picture? F. electrical to mechanical G. mechanical to nuclear H. thermal to electromagnetic J. electromagnetic to chemical These pictures show which energy transformation? C. electrical to potential B. chemical to thermal A. potential to kinetic D. thermal to nuclear 1 2 The movement of atoms and molecules in matter creates warmth. What do we call this type of energy? F. chemical energy G. thermal energy H. nuclear energy J. solar energy Solar energy passes through the solar panel on this calculator to make it work. Which energy conversion is taking place? C. nuclear to thermal A. electromagnetic to electrical B. electrical to chemical D. mechanical to electromagnetic G. chemical to electromagnetic & thermal F. electrical to thermal & mechanical H. mechanical to electrical & chemical Which energy conversion is taking place when you build a campfire? J. nuclear to chemical & electrical Which energy conversion is taking place below? B. mechanical to electromagnetic A. nuclear to electrical C. thermal to chemical D. chemical to mechanical F. bicycle Which item below is the best example ofelectromagnetic energy? G. power lines H. gasoline J. the sun A boy puts two birdbaths of the same type in his yard. One is yellow, and one is blue. He fills them with water. For one hour, he records the number and type of birds that visit each birdbath. What is the independent variable in this experiment? A. the number of birdbaths D. the number of birds at each birdbath B. the color of the birdbaths C. the type of birdbaths A boy rides his skateboard down a sidewalk that is 20 feet long. Then, he does the same thing down a sandy path of the same length. His friend times him and says his speed is faster on the sidewalk. What is the dependent variable in this experiment? F. the speed the boy travels G. the distance the boy travels H. the type of path he is on J. the number of boys All of the following are true about elements, EXCEPT-- C. They are only made of one kind of atom. A. They are represented by a chemical symbol. B. They can't be broken down. D. They are chemically combined. A basketball player was 200 cm tall. He was ____ tall. F. 2 meters (m) G. 2 millimeters (mm) H. 2 kilometers (km) J. 2 centimeters (2cm) Which element is the main element in Earth's crust, Earth's oceans, and the human body? A. hydrogen B. carbon C. nitrogen D. oxygen - F. - - - - - - - - G. - - - - - - - - - - H. - - - - - - - - - - J. - - - - - - Which part of the atom is being indicated by the number 2 on this diagram? A. nucleus B. proton C. electron D. neutron H. At age 35, reading distance is most likely 12 cm. F. As age increases, reading distance decreases. G. Every 10 years, reading distance increases by 10 cm. J. As age increases, reading distance increases. According to the graph, which of the following statements is true? The volume of the water was 24 mL before the peanut was dropped in. What is the volume of the peanut? B. 12 cm3 C. 28 cm3 D. 36 cm3 A. 4 cm3 F 4.1 mm G 41 mm H 3.1mm J 31 mm How long is the line if measured inmillimeters? |