Register
Question 1
A capacitor with C = 20 μF is charged to V = 10 V. What is the energy stored?
Correct Answer:
1.0×10^-3 J
Explanation:
A capacitor stores energy according to E = (1/2) C V^2. Convert the capacitance to farads: 20 μF = 20 × 10^-6 F = 2.0 × 10^-5 F. With V = 10 V, E = 0.5 × (2.0 × 10^-5) × (10)^2 = 0.5 × 2.0 × 10^-5 × 100 = 1.0 × 10^-3 J. So the energy stored is 1.0 × 10^-3 J (1 millijoule).
Question 2
If one horsepower is applied for one minute, how many foot-pounds of work are produced?
Correct Answer:
33,000
Explanation:
Work is the amount of energy transferred by a force acting over time, and power times time gives work. One horsepower is a rate equal to 550 foot-pounds of work per second. Applying that rate for one minute means 60 seconds of operation, so the total work is 550 × 60 = 33,000 foot-pounds. Therefore, the work produced is 33,000 foot-pounds.
Question 3
Which unit is used to express work in the English system?
Correct Answer:
Foot-Pounds
Explanation:
Work in the English system is measured as force times distance, so the unit is foot-pounds. When you exert one pound of force over a distance of one foot, you’ve done one foot-pound of work. The common shorthand for this in English units is Foot-Pounds (often written ft·lbf). Pound-Feet is a unit of torque, not work, so it isn’t appropriate here. Newton-Meters belongs to the SI system, not the English system. Foot-Pounds is the best fits because it directly represents energy/work in the English units.
Question 4
How does the refractive index n vary with wavelength in normal dispersion?
Correct Answer:
n decreases as wavelength increases
Explanation:
In normal dispersion, the refractive index n decreases as the wavelength of light increases. Shorter wavelengths experience a larger n and thus slow down more in the medium, bending more when entering or exiting the material. Conversely, longer wavelengths have a smaller n, slow down less, and bend less. This is why prisms spread white light into colors: blue light (shorter wavelength) is refracted more than red light (longer wavelength). Near absorption bands, dispersion can behave differently (anomalous dispersion), but in the typical visible range the trend is toward decreasing n with increasing wavelength.
Question 5
What is the speed of sound at standard sea level?
Correct Answer:
661.7 knots
Explanation:
Sound travels through air at a speed set by temperature. At standard sea level conditions (about 20°C), that speed is about 343 meters per second. To compare in nautical terms, convert meters per second to knots: 1 m/s is about 1.9438 knots, so 343 m/s is roughly 666–667 knots. The option 661.7 knots is the closest match to that value, which is why it represents the speed of sound at standard sea level. The same speed is also about 767 mph or roughly 1125 ft/s.
Question 1
Exam overview

About this Exam

Prepare with the MIAT Physics Practice Test practice quiz. This question bank includes 10 questions covering energy, work, speed, standard, and level. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

MIAT Physics Practice Test

This practice set contains 10 questions from the matching question bank and focuses on energy, work, speed, standard, and level. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions

A Level Physics Practice Exam

0 min

Fast-Food and Physics Practice Test Guide

0 min

Arizona State University (ASU) PHY101 Introduction to Physics Practice Exam

0 min

CEODD Dive Physics Practice Exam

0 min

Assessment and Qualifications Alliance (AQA) GCSE Physics Paper 2 Practice Exam

0 min

Assessment and Qualifications Alliance (AQA) GCSE Physics Practice Exam

0 min