*Question*
Q: Which type of arthritis causes the immune system to attack joints? Read this paragraph and choose the correct option from the provided answers: In rheumatoid arthritis, the immune system attacks joints. This causes joint damage and pain. Choices: - Osteoarthritis - Gout - Spondylarthropathies - rheumatoid A:
**Answer**
rheumatoid

*Question*
Q: What is defined as the amount of force acting on a given area? Read this paragraph and choose the correct option from the provided answers: Pressure is defined as the amount of force acting on a given area. Therefore, pressure can be represented by this equation:. Choices: - energy - resistance - power - pressure A:
**Answer**
pressure

*Question*
Q: What type of energy is required in all chemical reactions? Read this paragraph and choose the correct option from the provided answers: All chemical reactions require activation energy, which is the energy needed to get a reaction started. Choices: - conduction - function - solar - activation A:
**Answer**
activation

*Question*
Q: Massive quanta, like electrons, also act like macroscopic particlessomething we expect, because they are the smallest what? Read this paragraph and choose the correct option from the provided answers: 29.4 Photon Momentum Measuring Photon Momentum The quantum of EM radiation we call a photon has properties analogous to those of particles we can see, such as grains of sand. A photon interacts as a unit in collisions or when absorbed, rather than as an extensive wave. Massive quanta, like electrons, also act like macroscopic particlessomething we expect, because they are the smallest units of matter. Particles carry momentum as well as energy. Despite photons having no mass, there has long been evidence that EM radiation carries momentum. (Maxwell and others who studied EM waves predicted that they would carry momentum. ) It is now a well-established fact that photons do have momentum. In fact, photon momentum is suggested by the photoelectric effect, where photons knock electrons out of a substance. Figure 29.17 shows macroscopic evidence of photon momentum. Choices: - regiments of matter - battalions of matter - depth of matter - units of matter A:
**Answer**
units of matter