Science 3QA

Question 1: What is a scalar quantity?

• a) A quantity with only magnitude

• b) A quantity with both magnitude and direction

• c) A quantity with only direction

• d) A quantity with variable magnitude

Question 2: Which of the following is a scalar quantity?

• a) Velocity

• b) Force

• c) Temperature

• d) Displacement

Question 3: Which of the following is NOT a vector quantity?

• a) Acceleration

• b) Displacement

• c) Speed

• d) Force

Question 4: Which of the following is a vector quantity?

• a) Volume

• b) Mass

• c) Distance

• d) Displacement

Question 5: Which property does a vector possess that a scalar does not?

• a) Magnitude

• b) Direction

• c) Both magnitude and direction

• d) Variable magnitude

Question 6: What is a wave?

• a) A transfer of matter from one place to another

• b) A disturbance that travels through a medium or space

• c) A static state of energy

• d) A form of radiation emitted by objects

Question 7: What is the difference between a transverse and a longitudinal wave?

• a) Transverse waves travel in a straight line, while longitudinal waves travel in a curved path.

• b) Transverse waves have particles oscillating perpendicular to the direction of wave travel, while longitudinal waves have particles oscillating parallel to the direction of wave travel.

• c) Transverse waves are only found in solids, while longitudinal waves are found in liquids and gases.

• d) Transverse waves require a medium to travel, while longitudinal waves can travel through a vacuum

Question 8: Which of the following is an example of a transverse wave?

• a) Sound wave

• b) Water wave

• c) Light wave

• d) Earthquake wave

Question 9: What is the wavelength of a wave?

• a) The distance between two consecutive crests or troughs

• b) The height of a wave from its midpoint to its peak

• c) The time it takes for one complete wave cycle

• d) The speed of the wave multiplied by its frequency

Question 10: What determines the speed of a wave in a medium?

• a) Amplitude

• b) Frequency

• c) Wavelength

• d) Properties of the medium such as density and elasticity