MCS 5

Consider the following velocity-time graph and select the statement that is true.

• The object speeds up and later slows down

• b. The object is accelerating throughout the entire recorded time

• c. The object travels in one direction and then the other

• d. The object returns to its original position

Work is measured in which units?

• a. N

• b. J/s

• c. N•s

• d. J

In the following wire, conventional current is flowing to the right. In which direction will the compass point?

• a. north

• b. east

• c. west

• c. South

The amount of heat required to raise the temperature of 1 kg of a substance by 1 C is called:

• a. Specific heat capacity

• b. Temperature gradient

• c. None of the above

• d. Thermal energy

Which of the following statements concerning vector and scalar quantities is incorrect?

• a. All vector quantities have magnitude

• b. All scalar quantities have magnitude

• c. All scalar quantities have direction

• d. All vector quantities have direction

The position-time graph that depicts a ball thrown vertically upward that returns to the same position is

• D

• C

• A

• B E

Which is false regarding magnetism?

• a. Magnetic fields have direction only

• b. A magnetic field can be induced in a non-magnetic material

• c. Magnetic fields have magnitude and direction

• d. Right hand rule helps us determine the direction of the magnetic field

An object completes 240 cylces in 15 s. What is the frequency in Hz?

• a. 16 Hz

• b. 0.063 Hz

• c. 240 Hz

• d. 15 Hz

In a graph of Force vs. Distance, the Work done would be found by:

• a. The slope of the line

• b. The tangent line

• c. The area under the curve

• d. The y-intercept

In a series circuit, there are three resistors of values 3.0Ω, 4.0Ω and 5.0Ω. What is the total equivalent resistance of the circuit?

• 0.78Ω

• 1.3Ω

• 60Ω

• 12Ω