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Physics Concepts for Grade 10

Authored by Quỳnh Anh

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10th Grade

Physics Concepts for Grade 10
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Newton's second law of motion?

An object in motion will stay in motion unless acted upon by an equal force.

The force acting on an object is equal to its mass times its velocity (F = mv).

The acceleration of an object is constant regardless of the net force applied.

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define kinetic energy and provide its formula.

The formula for kinetic energy is KE = 0.5 * m * v^2, where KE is kinetic energy, m is mass, and v is velocity.

The formula for kinetic energy is KE = m * v, where KE is kinetic energy, m is mass, and v is velocity.

The formula for kinetic energy is KE = 0.5 * m * v, where KE is kinetic energy, m is mass, and v is acceleration.

Kinetic energy is defined as the energy possessed by a body at rest.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the concept of thermal equilibrium.

Thermal equilibrium is the process of heating a body until it reaches a boiling point.

Thermal equilibrium refers to the state where bodies are in motion and generate heat.

Thermal equilibrium is the state in which two or more bodies in thermal contact have the same temperature, resulting in no net heat transfer between them.

Thermal equilibrium occurs when bodies are at different temperatures but still transfer heat.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between heat and temperature?

Heat is a type of temperature.

Heat is energy transfer; temperature is a measure of thermal energy.

Temperature measures energy transfer.

Heat is the same as temperature.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe the law of conservation of energy in thermodynamics.

Energy can be destroyed but not created.

Energy is always lost in transformations.

Energy cannot be created or destroyed, only transformed.

Energy can be created from nothing.

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