Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the Doppler Effect describe?
💡 Hint: Think about what happens to the sound of a passing ambulance.
Question 2
Easy
What is the main purpose of Doppler ultrasound?
💡 Hint: What type of waves are used in the medical context?
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What principle does Doppler ultrasound rely on?
💡 Hint: Remember the sound of a siren as it approaches!
Question 2
Doppler echocardiography can help diagnose heart conditions by measuring:
💡 Hint: Consider what essential information doctors seek about heart function.
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
Using the formula $\Delta f \approx \frac{2 f_s v_b \cos \theta}{v_{sound}}$, calculate the frequency shift for blood moving at $0.5 m/s$ towards a transducer emitting sound at $2 MHz$ with an angle of $30^\circ$.
💡 Hint: You will need to convert the MHz to Hz to ensure consistent units.
Question 2
Discuss how the use of Doppler ultrasound in prenatal care can impact infant health monitoring.
💡 Hint: Consider the importance of monitoring blood flow to the fetus.
Challenge and get performance evaluation