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Front

What is work in physics?

Back

Work is defined as the product of the force applied to an object and the distance over which that force is applied, in the direction of the force. It is measured in joules (J).

Front

What is the formula for calculating work?

Back

Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the unit of work?

Back

The unit of work is the joule (J), which is equivalent to one newton meter (N·m).

Front

If no displacement occurs, what is the work done?

Back

If there is no displacement, the work done is 0 joules (0 J), regardless of the force applied.

Front

What is the relationship between force and work?

Back

Work is done when a force causes an object to move. If the force is applied but there is no movement, no work is done.

Front

What does it mean if work is negative?

Back

Negative work occurs when the force applied is in the opposite direction to the displacement of the object.

Front

What is gravitational force?

Back

Gravitational force is the force of attraction between two masses, such as the Earth and an object, typically measured in newtons (N).

Front

What is the value of gravitational acceleration on Earth?

Back

The value of gravitational acceleration on Earth is approximately 9.81 m/s².

Front

What is the significance of the angle in the work formula?

Back

The angle (θ) in the work formula determines how much of the force contributes to the work done; cos(θ) accounts for the direction of the force relative to the displacement.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object (measured in kilograms), while weight is the force exerted by gravity on that mass (measured in newtons).