Q: Q: What term in physics refers to the use of force to move an object? Read this paragraph and choose the correct option from the provided answers: Work is defined differently in physics than in everyday language. In physics, work means the use of force to move an object. The teen who is playing tennis in Figure above is using force to move her tennis racket, so she is doing work. The teen who is studying isn't moving anything, so she is not doing work. Choices: - mass - momentum - velocity - work A:
A: work

Q: Q: What is the germ for a group of atoms within a molecule that reacts similarly anywhere it appears in different compounds? Read this paragraph and choose the correct option from the provided answers: With over twenty million known organic compounds in existence, it would be very challenging to memorize chemical reactions for each one. Fortunately, molecules with similar functional groups tend to undergo similar reactions. A functional group is defined as an atom or group of atoms within a molecule that has similar chemical properties whenever it appears in various compounds. Even if other parts of the molecule are quite different, certain functional groups tend to react in certain ways. Choices: - atomic group - thermal group - molecular group - functional group A:
A: functional group

Q: Q: What type of symmetry do echinoderms show? Read this paragraph and choose the correct option from the provided answers: As mentioned earlier, echinoderms show radial symmetry. Other key echinoderm features include an internal skeleton and spines, as well as a few organs and organ systems. Although echinoderms look like they have a hard exterior, they do not have an external skeleton. Instead, a thin outer skin covers an internal skeleton made of tiny plates and spines. This provides rigid support. Some groups of echinoderms, such as sea urchins ( Figure below ), have spines that protect the organism. Sea cucumbers use these spines to help them move. Choices: - mirrored - lateral - parallel - radial A:
A: radial

Q: Q: Which acid contains only one ionizable hydrogen? Read this paragraph and choose the correct option from the provided answers: A monoprotic acid is an acid that contains only one ionizable hydrogen. Hydrochloric acid and acetic acid are monoprotic acids. A polyprotic acid is an acid that contains multiple ionizable hydrogens. Most common polyprotic acids are either diprotic (such as H 2 SO 4 ) or triprotic (such as H 3 PO 4 ). Choices: - citric acid - lactic acid - amino acid - monoprotic acid A:
A: monoprotic acid