As the ball is going upwards, the velocity points __________ and the acceleration points __________.
Fill in the blank(s) with correct word
[Ques. 2] What happens to the charge that leaves a battery in a complete circuit that includes a light bulb?
a. It goes to the light bulb and gets used up.
b. It goes through the light bulb and returns to the other end of the battery.
c. It accumulates at the farthest point from the bulb.
d. It is lost as heat and light.
e. It goes to the light bulb or other object and disperses throughout the system.
[Ques. 3] An aircraft approaches a runway that runs directly east as a strong wind blows out of the south. The direction that the aircraft should points in order to land on the runway is __________.
Fill in the blank(s) with correct word
[Ques. 4] Why does the bulb light when connected as in the figure at the right, but not in the situation shown in the figure at the left?
a. The bulb in the figure at left is connected to the wrong side of the battery.
b. For electric current to flow continuously through the bulb, there must be a connection between the positive and the negative terminals of the battery.
c. By connecting to only one terminal the bulb in the figure at left gets only half as much voltage as the bulb on the right.
d. There is no way for electrical energy to flow out of the bulb, so it blocks the energy flow.
e. Unlike household electricity, low voltage batteries cannot force electricity through the bulb without having a return path.
[Ques. 5] The slope of a distance vs. time graph is the __________.
Fill in the blank(s) with correct word
[Ques. 6] What is electric current?
a. The same thing as a charge.
b. The electrical energy from a generator.
c. The electrical energy from by a battery.
d. An abrupt and brief electrical discharge, such as a spark.
e. A continuous flow of charge.
[Ques. 7] The slope of a velocity vs. time graph is the __________.
Fill in the blank(s) with correct word
[Ques. 8] Which of these statements correctly compares battery cells in series with the cells in parallel?
a. When battery cells are in series, the voltage stays the same but the cells last longer.
b. When battery cells are in parallel, the voltage increases, but the cells last the same amount of time.
c. When battery cells are in series, the voltage increases and the cells last longer.
d. When battery cells are in parallel, the voltage stays the same and the cells last longer.
e. When battery cells are in parallel the voltage is the same and they last just as long as when the cells are in series.
[Ques. 9] A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is __________.
Fill in the blank(s) with correct word
[Ques. 10] What happens when a battery is recharged?
a. The negative charge is turned around and made into a positive charge again.
b. The cells are turned around and connected in the opposite direction.
c. An electric charger runs current backward through the battery and reverses the chemical reactions.
d. The electrolyte is poured out and replaced.
e. Electric charge is pumped back into the battery to be released again when the charge is used.
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