Fall 2024 Semester Test

Front

What is the formula for calculating work done?

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 in the International System of Units (SI)?

Back

The unit of work is the Joule (J).

Front

Where does the independent variable go on a graph?

Back

The independent variable is plotted on the X-axis.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What happens to the resistance of a wire if its length is increased?

Back

The resistance of a wire increases as its length increases.

Front

What is a fuse and its purpose in an electrical circuit?

Back

A fuse is a safety device that contains a piece of metal that melts if the current is too high, breaking the circuit to prevent damage.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, Force (F) = Mass (m) × Acceleration (a).

Front

What is the effect of temperature on the resistance of a conductor?

Back

Increasing the temperature of a conductor generally increases its resistance.

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.