Waves in a liquid RPA (Activity 1)

What is the main objective of today's activity in the Waves in a liquid RPA (Activity 1)?

• To identify the equipment required for the RPA investigation.

• To calculate wave speed in a liquid using frequency and wavelength.

• To describe the method employed in the RPA investigation.

• To conclude and evaluate the ripple tank investigation.

How is the wavelength of the waves determined in this experiment?

• By counting the number of waves passing a point in a given time.

• By measuring the depth of water in the tank.

• By measuring across as many waves as possible and dividing by the number of waves.

• By adjusting the speed of the motor.

What equation is used to calculate the speed of the waves in this experiment?

• Speed = Distance / Time

• Speed = Frequency / Wavelength

• Speed = Frequency × Wavelength

• Speed = Wavelength / Frequency

What should be placed at right angles to the waves to measure their wavelength?

• A metre ruler

• The wooden rod

• The lamp

• The white card

What is the purpose of adjusting the height of the lamp in the experiment?

• To ensure the motor is submerged properly.

• To make sure the waves are visible on the white card.

• To measure the frequency of the waves.

• To change the depth of water in the tank.

How is the frequency of the waves calculated in this experiment?

• By dividing the number of waves counted by the depth of water.

• By multiplying the number of waves by the time measured.

• By dividing the number of waves counted by the time measured.

• By measuring the speed of the motor.

Which of the following is an apparatus used in observing water waves in a ripple tank?

• A thermometer

• A low-voltage power supply

• A stopwatch

• A balance scale

What is used to measure the length in the ripple tank experiment?

• A measuring tape

• A metre ruler

• A vernier caliper

• A weighing scale

What is the purpose of the lamp in the ripple tank experiment?

• To heat the water

• To measure the depth of water

• To provide light to observe the water waves

• To generate waves in the water

What is the role of the motor in the ripple tank experiment?

• To measure the frequency of the waves

• To control the temperature of the water

• To stir the water

• To generate waves in the water