MCQ practice · SSC Physics Board questions · Chapter 4
SSC Physics Chapter 4.
Work, Power and Energy
90 questions · Board questions
- A matchstick is rubbed on the matchbox with a force of 3 N. The stick is pulled 4 cm. How much energy was spent in rubbing the stick?Dhaka Board 2022
- Work can be measured from which of the following formulae? Which is correct?Jashore Board 2023
- If joule is divided by newton, the unit of which quantity is obtained?Mymensingh Board 2023
- When you lower a set of books from a high shelf with your hand, then-Sylhet Board 2022
- Which is the unit of work?Sylhet Board 2021
- Which of the following is a unit of work?Mymensingh Board 2021
- A car is driven around a circular path of radius 7 metres, and 10 N of force is applied while it goes 44 metres. What is the amount of work done? [pi = 22/7]Mymensingh Board 2023
- What is the work done on the object?Barishal Board 2021
- The unit of energy-Barishal Board 2021
- Which of the following is a unit of energy?Dhaka Board 2021
- What is the most common form of energy?Rajshahi Board 2024
- What is the most common form of energy?Rajshahi Board 2022
- Which is the most common form of energy?Cumilla Board 2021
- The most common form of energy is-Mymensingh Board 2021
- If the kinetic energy of a body of a fixed mass is made 4 times, by how many times does the velocity become?Cumilla Board 2021
- If the mass of a body is halved and its velocity is made four times, the kinetic energy becomes how many times the previous value?Mymensingh Board 2024
- At what ratio of the velocities of two moving bodies of mass 3 kg and 9 kg will their kinetic energies be equal?Mymensingh Board 2024
- If the kinetic energy becomes 9 times, by how many times does the velocity of the body become?Jashore Board 2023
- If the velocity of an object of a fixed mass is doubled, by how many times does its kinetic energy change?Mymensingh Board 2022
- The kinetic energy of a moving body will become four times if-Sylhet Board 2022
- A body of mass 10 kg moving at 5 ms⁻¹ is given a further 20 J of energy in the direction of motion. What will its velocity be?Sylhet Board 2022
- Two persons of masses 40 kg and 80 kg are running at 8 ms⁻¹ and 4 ms⁻¹ respectively. Which of the following is correct for the two?Chattogram Board 2021
- In which of the following forms can 1/2 mv² be written?Dhaka Board 2021
- The kinetic energy of a moving body will become 27 times if its-Jashore Board 2021
- What is the kinetic energy in joules (J) of a motorcycle of mass 90 kg moving at 50 kmh⁻¹?Sylhet Board 2021
- At what velocity will the momentum and the kinetic energy of a body have the same value?Rajshahi Board 2021
- After 5 s of the above event-Jashore Board 2021
- What is the maximum kinetic energy of the car?Dhaka Board 2023
- Which energy is stored in an object when it is raised above the earth's surface?Chattogram Board 2021
- Which energy is stored in an object when it is stretched taut?Jashore Board 2022
- When an object is picked up from the floor and placed on a table-Mymensingh Board 2021
- At what velocity was the object thrown upward?Sylhet Board 2024
- What will be the velocity of the object after covering the first half of the distance?Sylhet Board 2024
- An object of mass 5 kg is thrown vertically upward at 50 m s⁻¹. What will its mechanical energy be at the highest point?Rajshahi Board 2023
- Which of the following is a non-renewable energy?Barishal Board 2024
- Which is a non-renewable energy?Barishal Board 2022
- Which of the following is a non-renewable energy-Chattogram Board 2022
- Which is a non-renewable energy?Sylhet Board 2022
- Which of the following is a non-renewable energy?Barishal Board 2021
- What is the fuel of fusion?Chattogram Board 2022
- Using which do the sun or the stars produce their energy?Mymensingh Board 2021
- Which of the following is used as fuel in a nuclear reactor?Dinajpur Board 2022
- Which of the following is a source of renewable energy?Barishal Board 2023
- Which is a source of renewable energy?Dinajpur Board 2022
- Which energies are renewable energies?Jashore Board 2022
- Which is a source of renewable energy?Jashore Board 2021
- Which of the following is a source of renewable energy?Mymensingh Board 2021
- In which country is biofuel being used on a large scale?Jashore Board 2023
- Over how many square kilometres can about 5000 MW of energy be obtained as heat from sunlight?Dhaka Board 2021
- Renewable energy is-Sylhet Board 2021
- Sources of renewable energy-Mymensingh Board 2022
- A nuclear power plant is risky for the environment because-Barishal Board 2021
- Which of the following is responsible for the rise in sea level?Mymensingh Board 2021
- Into which energy is a stone that has fallen from above converted when it touches the ground?Dinajpur Board 2021
- An object falls from a height of 20 m to the ground. While it is falling, what is the ratio of potential energy to kinetic energy at 5 m above the ground?Cumilla Board 2024
- At the instant before a body falling from rest touches the ground, all of its energy is-Mymensingh Board 2023
- When a mango keeps falling downward from a tree-Jashore Board 2022
- An object of mass m is placed at 20 m, 30 m, 40 m and 50 m above the ground. From which position will its kinetic energy be the greatest if it is released?Chattogram Board 2021
- A child is swinging on a swing. Which of the following is correct for the child?Jashore Board 2021
- For a falling body-Jashore Board 2021
- When a mobile battery is being charged, which energy is stored in the battery?Chattogram Board 2023
- By the action of light on a photographic plate, into which energy is light energy converted?Dinajpur Board 2022
- "Heat is produced when hands are rubbed together." What kind of energy transformation is this?Dhaka Board 2023
- In which of the following devices can light energy be converted into heat energy?Sylhet Board 2023
- When a person fans the air with a hand fan, in the person-Rajshahi Board 2022
- Considering quantity, the largest amount of energy transformation in the world takes place from which of the following?Chattogram Board 2021
- Heating the junction of two different metals in a thermocouple directly produces which energy?Dhaka Board 2021
- What is the amount of uranium in nature?Dhaka Board 2023 · Dinajpur Board 2024 · Jashore Board 2023 · Dhaka Board 2022
- By which law is it possible to convert the mass of an object into energy?Dhaka Board 2022
- If 1 kg of mass is lost in a fission process in a chain reaction, the energy released is-Rajshahi Board 2022
- In a nuclear power plant-Chattogram Board 2023
- In the case of uranium-Rajshahi Board 2023
- In a nuclear reactor-Dinajpur Board 2022
- How many neutrons are released in the second step of the chain reaction of uranium?Dinajpur Board 2021
- What is used in a nuclear reactor to absorb neutrons?Jashore Board 2021
- Which is the unit of power?Chattogram Board 2024
- If a body of mass 100 kg is lifted 20 m upward in 15 s, the quantities will be- which of the following is correct?Chattogram Board 2024
- Which is the unit of power?Sylhet Board 2022
- A person of weight 70 kg climbs a 100 m high hill in 5 minutes. What is his power in watts? [g = 9.8 ms⁻²]Mymensingh Board 2022
- How much energy is produced per hour in a 50 MW nuclear power plant?Barishal Board 2021
- Which of the following is the product of force and velocity?Cumilla Board 2022
- Using a 1 kW motor, a body of mass 100 kg is lifted 10 m up in 15 s. How much energy is wasted?Dhaka Board 2021
- What will be the available useful energy?Barishal Board 2023
- In the stimulus-Barishal Board 2023
- What is the mass of the object?Dinajpur Board 2023
- Of the motor-Dinajpur Board 2023
- In the case of efficiency-Barishal Board 2022
- By an electric motor of power 500 W, a 15 kg object is raised to a height of 20 m in 10 sec. How much energy is wasted?Cumilla Board 2022
- If 10% of the energy is wasted at each step, what is the efficiency over two steps?Dhaka Board 2021
- If efficiency is η, the amount of work W, the energy supplied E and the energy wasted E_l, which formula is correct?Dinajpur Board 2021