TEAS 7 Chemistry: Essential Practice for Success

ATI TEAS 7

Chemistry

1. The process of a gas changing directly into a solid is called:

A. Condensation
B. Deposition
C. Sublimation
D. Evaporation

Correct answer: B

Rationale: This process, also known as sublimation, involves gas particles losing energy and transitioning directly into the solid state.

2. A ball is thrown upwards. Which of the following statements is TRUE about its potential energy and kinetic energy at the peak of its trajectory?

A. Both potential and kinetic energy are zero.
B. Potential energy is maximum and kinetic energy is minimum.
C. Potential energy is minimum and kinetic energy is maximum.
D. Both potential and kinetic energy remain constant.

Correct answer: B

Rationale: At the peak, the ball momentarily stops moving, minimizing kinetic energy. However, it's still at its highest point, maximizing its potential energy due to gravity.

3. How is power defined in terms of physics?

A. The rate at which work is done
B. The amount of force applied
C. The distance an object travels
D. The potential energy of an object

Correct answer: a

Rationale: Power is defined as the rate at which work is done or the rate at which energy is transferred or converted.

4. How do you spell the past participle of the verb "lie" (to recline)?

A. lied
B. lain
C. lay
D. lying

Correct answer: B

Rationale: The past participle of "lie" (to recline) is "lain," not "lied," which is the past tense.

5. Which statement accurately describes cytokinesis in animal cells?

A. Which statement accurately describes cytokinesis in animal cells?
B. A cell plate forms in the center of the dividing cell, eventually separating the cytoplasm into two daughter cells.
C. A cell plate forms in the center of the dividing cell, eventually separating the cytoplasm into two daughter cells.
D. The nucleus elongates and pulls apart, physically dividing the cytoplasm into two.

Correct answer: B

Rationale: Rationale: A) This statement is a duplicate of option C and does not accurately describe cytokinesis in animal cells. B) In animal cells, during cytokinesis, a cleavage furrow forms in the center of the dividing cell. This furrow deepens and eventually pinches the cytoplasm into two daughter cells. This process is distinct from plant cells, where a cell plate forms. C) This statement is a duplicate of option A and does not accurately describe cytokinesis in animal cells. D) This statement describes the process of nuclear division (mitosis) rather than cytokinesis, which is the division of the cytoplasm.