1. Sensitivity of thermometer depends on:
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Half Book 2
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2. Emma is learning about cosmology. She understands that cosmology is the study of the origin and evolution of the universe. What does cosmology primarily investigate?
3. Laura is learning about resistance thermometers or thermistors. She understands that thermistors are temperature-sensitive resistors. How does the resistance of a thermistor change with temperature?
4. Nuclear physics studies ____.
5. The Earth behaves like:
6. An electromagnet works on the principle of:
7. Ming is studying solar radiation. He knows that solar energy is a renewable energy resource. What device is used to convert solar energy into electricity?
8. Which instrument is commonly used to measure mass?
9. Mohamed is studying the bimetallic strip thermometer. He learns that a bimetallic strip consists of two different metals with different coefficients of expansion. What happens to a bimetallic strip when heated?
10. Nora is studying ferromagnetic materials. She knows that ferromagnetic materials have domains that align in a magnetic field. What happens to the domains when the external magnetic field is removed?
11. Which of the following best represents collaboration in science?
12. Physicists mainly try to understand ____.
13. Aisha is studying the states of matter. She understands that particles in a solid are closely packed. What is the arrangement of particles in a solid?
14. Rachel is studying the difference between magnetic and non-magnetic materials. She knows that non-magnetic materials are not attracted to magnets. Which of the following is a non-magnetic material?
15. Ibrahim is studying the sensitivity of thermometers. He learns that sensitivity can be increased by using a liquid with a larger coefficient of expansion. Which liquid has a larger coefficient of expansion than mercury?
16. Fatima is studying climate physics. She learns that climate physics is important for understanding climate change. Which of the following is a factor in climate change studied in climate physics?
17. Paula is studying relativistic mechanics. She learns that relativistic mechanics deals with objects moving at speeds close to the speed of light. Who proposed the theory of relativity?
18. The study of sound comes under which branch?
19. Fatima is studying biomass. She knows that biomass can be used to produce energy. Which of the following is an example of biomass?
20. Ferromagnetic materials are:
21. Vera is learning about the variation of volume and pressure. She understands that for a gas at constant temperature, pressure is inversely proportional to volume. If the volume doubles, what happens to the pressure?
22. George is studying internal energy and temperature of a substance. He learns that internal energy is the total energy of particles in a substance. What is the internal energy of an object related to?
23. Xia is studying efficiency. She knows that no machine is 100% efficient because some energy is lost as heat. What happens to the lost energy in a machine?
24. If force is applied but no displacement occurs, the work done is:
25. David is learning about the states of matter. He understands that matter exists in different states. Which of the following is NOT a state of matter?
26. George is studying the bimetallic strip thermometer. He learns that it is used in thermostats. What is the function of a thermostat?
27. Oliver is studying the difference between magnetic and non-magnetic materials. He knows that magnetic materials contain unpaired electrons. What is the basis of magnetism in materials?
28. Which is an example of plasma?
29. Xia is studying computational physics. She learns that computational physics is a modern field. Which of the following is a use of computational physics?
30. Which of the following is included in physics?