Science True/False and Multiple Choice Questions

True/False

t: A strong acid is one that will completely ionize

f: When blue litmus paper is placed in a weak acid, it will turn a darker shade of blue

f: When pH paper provides a reading which says it has a pH of 9, the substance is considered a weak acid.

f: Alpha, Beta, and Gamma are all forms of nuclear radiation that contain either positive or negative charges.

t: Fission is the process where a large nucleus splits unto two smaller nuclei.

f: The most common isotope of carbon that is used for radioactive dating is carbon-13.

t: Static friction is friction that occurs when an object is not moving.

f: When an object is accelerating but it is not traveling in a straight line, it must be moving vertically.

t: Friction is force that always opposes the motion of an object.

f: When the mass of an object is doubled, the gravitational force is four times as great.

t: Projectile motion can be described as an object.

f: Rocket motion is an example of the application of Newton's third law of motion.

t: Simple machines can be classified into the lever family.

t: Gravitational potential energy can be calculated by knowing the mass of the object.

t: Stored chemical energy can be considered a type of non-mechanical potential energy.

t: A person's hand is good at sensing the direction of heat flow, it is not good at determining the temperature of the object.

t: When moisture evaporates from your skin, energy is required.

t: Radiation of heat can take place through empty space.

t: The equation v=fA is used to find the speed that a wave travels.

f: The period of a wave is defined as the number waves that pass a set point in 1 sec.

t: The Doppler effect is a result of constructive interference between two waves.

f: The law of reflection states that when a wave enters a different medium.

t: A diverging lens is used in glasses to correct vision when a person is near-sighted.

t: When light strikes a prism, light is refracted, undergoes dispersion.

f: When a fuse is put into a circuit, the purpose...

t: Parallel circuits allow for electricity to flow in multiple paths while series circuits allow for only one path.

t: Even though it is possible to have an object that is electrically charged positive.

t: An insulator is a substance that has a very high resistance to the movement of charges.

Short Answer

d: The label on a bottle indicates the substance inside has a pH of 13.

d: When a solution of an acid reacts with a solution of a base, hydronium ions react with hydroxide ions to form.

a: When a solution of an acid reacts with a solution of a base, the pH

a: Alpha particles

b: In radioactive decay, with each successive half-life, half the remaining sample decays to form another.

d: To treat certain brain tumors, doctors can use small beams.

b: The distance traveled by an object divided by the time it takes to travel that distance is called.

c: Acceleration is defined as the change in velocity divided by.

b: If the net force action on a stationary object is zero, then the object will.

d: Whenever an object is standing still, the value that is/are.

c: Weight is best described as.

a: The SI unit of force, named for the scientist who described the relationship.

c: Which of the following processes requires the most work?

b: What is the mechanical advantage of a ramp that is 10 m and 2 m high.

d: A machine is a device that

a: The transfer of energy by the movement of fluids.

b: Which of the following statements is true?

b: A combustion engine uses what kind of energy to do work?

a: Light waves

b: Sound waves

b: The wavelength of the wave in the diagram is.

c: The amplitude of the wave in the diagram is.

Formulas

Kinetic energy: 1/2mv²

Power: work over time

Work: f x d

Hydronium ions: H₃O⁺ Hydroxide: OH^-