Due Date: 10/04/19 Name: Science Bellwork Week Nine

Monday 1. All of these words describe forms of energy, except

A.) chemical C.) material B.) electrical D.) thermal 2. Which of these forms of energy travels in a waves? A.) chemical C.) potential B.) kinetic D.) sound 3. How does an object gain potential energy? A.) by melting C.) by cooling to a lower temperature B.) by gaining speed D.) by being raised above the ground 4. Which form of energy travels through wires?

A.) thermal C.) electric B.) mechanical D.) nuclear 5. Why is the sun important in terms of energy?

Tuesday 1. Which form of energy comes from the motion of particles?

A.) nuclear C.) thermal B.) chemical D.) sound 2. Light energy travels in

A.) heat C.) waves B.) radiation D.) a wire

3. The sum of an objects potential and kinetic energy is A.) heat C.) mechanical B.) light D.) chemical

4. When thermal energy is transferred it is A.) heat C.) thermal expansion B.) temperature D.) specific heat

5. Write KE if it is an example of kinetic energy and PE if it is an example of potential energy. èèèèèèèèèè Wednesday 1. A student placed one hundred dominoes upright in a row. He knocked over the first domino and the rest all fell over; one after another. What made the domino at the end of the row move? A.) chemical C.) electric B.) heat D.) mechanical 2. An example of the transformation of energy is

A.) energy changing from potential to kinetic B.) energy changing from radiant to electrical C.) energy changing from chemical to thermal D.) all the above 3. Friction causes kinetic energy to be converted into A.) potential energy C.) thermal energy B.) Mechanical Energy D.) electric energy 4. A generator converts mechanical energy to what form of energy?

A.) thermal energy C.) electromagnetic energy B.) chemical energy D.) electric energy 5. Refer to the image to the right èèèèèèèèèè

Thursday 1. Which of the following is the best definition of kinetic energy

A.) the energy of chemical bonds C.) the energy that is stored B.) the energy of objects with heat D.) the energy of movement

2. When a tennis ball bounces on the floor, which of the following best describes what happens to the height of the rebound bounce of the ball?

A.) the ball comes back to the height it was dropped from originally B.) the ball comes back to comes back to a height higher than it was dropped from originally

C.) the ball comes back to some fraction of the height it was dropped from originally D.) it is unknown what will happen 3. Which of the following is the best definition for potential energy?

A.) the energy of chemical bonds C.) the energy that is stored B.) the energy of objects with heat D.) the energy of movement 4. Which of the following choices are all forms of energy?

A.) light, sound, heat, and inertia C.) chemical, friction, and gravitational pull B.) light, mechanical, electrical, and friction D.) light, electrical, mechanical, and thermal

5. Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.

If the roller coaster car in the above problem were moving with twice the speed, then what would be its new kinetic energy?

Friday In the space provided, write “true” or “false” depending on whether the statement is true or not. If a statement is false, correct it to make it true. èèèèèèèèèè

Things that I understand Things that I have questions about Notes