PSci Final Exam

Front

What is amplitude in the context of waves?

Back

Amplitude is a measure of how much energy the wave is carrying.

Front

When you throw a baseball a distance of 20 meters, is this considered work?

Back

Yes, throwing the baseball is considered work.

Front

Is picking up a book off a table considered work?

Back

Yes, picking up a book is considered work.

Front

If you make a right turn while walking, do you have acceleration?

Back

Yes, making a right turn involves acceleration.

Front

When lifting a 10 lb (44.5 N) object up 1 m and carrying it 100 m forward, how much work is done?

Back

The work done is 44.5 J.

Front

Define work in physics.

Back

Work is defined as the product of force and the distance over which it acts, in the direction of the force.

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 in the International System of Units (SI)?

Back

The unit of work is the Joule (J).

Front

What does it mean if an object is in motion with constant velocity?

Back

If an object is in motion with constant velocity, it means that it is moving at a constant speed in a straight line, and there is no net force acting on it.

Front

What is acceleration?

Back

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