Fatima is calculating the potential energy of a 2 kg object placed at a height of 3 meters above the ground. What is the potential energy? (Take g = 10 m/s²)

Samir is studying internal energy and temperature. He learns that temperature is not a direct measure of internal energy. Why is temperature not a direct measure of internal energy?

Usman is learning about the objectives of physics. He understands that physics aims to understand the universe. Which of the following is NOT an objective of physics?

If more work is done in less time, power will be:

Which statement is falsifiable?

Which material can be magnetized easily?

Rachel is studying work. She knows that work is done when a force moves an object in the direction of the force. If the force and displacement are perpendicular to each other, what is the work done?

Diamagnetic materials are:

Efficiency is the ratio of:

Carlos is learning about acoustics. He understands that acoustics is used in various fields. Which of the following is a medical application of acoustics?

Zara is studying temporary magnets. She knows that temporary magnets are used in electric motors. What is the advantage of using temporary magnets in motors?

Rachel is studying the magnetic field of a bar magnet. She knows that the magnetic field is a vector quantity. What does the direction of the magnetic field represent?

Waleed is studying the effects of the nature of liquid used in a thermometer on its range. He learns that mercury has a wider range than alcohol. What is the freezing point of mercury?

Hina is studying quantum mechanics. She learns that quantum mechanics is a fundamental theory in physics. Which of the following principles is central to quantum mechanics?

What happens to particle motion when temperature increases?

Which of the following is not science?

Like magnetic poles will:

Paula is studying relativistic mechanics. She learns that relativistic mechanics deals with objects moving at speeds close to the speed of light. Who proposed the theory of relativity?

Calibration of thermometer means:

Waseem is studying the work-energy theorem. He knows that the work done on an object is equal to the change in its kinetic energy. If a force does 500 J of work on an object, what is the change in kinetic energy?

Physics helps us understand the universe by using ____.

Magnetic field lines enter the magnet at:

Khalid is studying the variation in color of crystals with temperature. He learns that some crystals change color when heated. Which of the following is an example of a thermochromic material?

Paula is studying astronomy. She learns that astronomy is one of the oldest sciences. Which of the following is a tool used in modern astronomy?

David is studying ferromagnetic materials. He knows that ferromagnetic materials are strongly attracted to magnets and can be permanently magnetized. Which of the following is a ferromagnetic material?

Paramagnetic materials are:

Paula is learning about measuring densities of irregular objects. She understands that the water displacement method is used. If an object displaces 50 cm³ of water and has a mass of 150 g, what is its density?

Mohamed is studying the bimetallic strip thermometer. He learns that a bimetallic strip consists of two different metals with different coefficients of expansion. What happens to a bimetallic strip when heated?

In science, researchers usually share their results through ____.

Density of a substance depends on: