Experiments to Find the Speed of Wave on a Wire

The video tutorial explains how to measure the speed of a wave on a wire. It begins with a theoretical overview of wave behavior, including the formation of stationary waves. The experiment setup is demonstrated, where a wire is made to vibrate using an AC supply and a magnet. Liam conducts the experiment, adjusting the wire length to form stationary waves and measuring the distance to calculate the wave speed. The results show a wave speed of 39 meters per second, concluding the tutorial.

What happens to the wave when it reaches the other end of the wire?

• It gets absorbed.

• It doubles in speed.

• It reflects back.

• It stops moving.

What is a stationary wave?

• A wave that carries energy across the wire.

• A wave that changes shape but not position.

• A wave that travels in one direction.

• A wave that disappears after a while.

How can the wavelength of the original wave be determined?

• By measuring the frequency of the wave.

• By measuring the distance between two nodes.

• By measuring the distance across one loop of the stationary wave.

• By measuring the amplitude of the wave.

What role does the U-shaped magnet play in the experiment?

• It creates a force on the wire to make it vibrate.

• It helps in measuring the wave's frequency.

• It increases the speed of the wave.

• It changes the direction of the wave.

Why is an AC supply used in the experiment?

• To provide a constant current.

• To create a magnetic field.

• To alternate the direction of the current and force.

• To increase the wire's tension.

What is the frequency of the alternating current used in the experiment?

• 60 Hertz

• 50 Hertz

• 40 Hertz

• 30 Hertz

How many loops did Liam achieve on the wire during the experiment?

• Four loops

• Three loops

• Two loops

• One loop

What was the measured distance between the bridge and the pulley?

• 0.98 meters

• 0.68 meters

• 0.78 meters

• 0.88 meters

What is the formula used to calculate the speed of the wave?

• v = F / Lambda

• v = F * Lambda

• v = F + Lambda

• v = Lambda / F

What was the calculated speed of the wave on the wire?

• 29 meters per second

• 49 meters per second

• 39 meters per second

• 59 meters per second