DO NOW 90

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

The formula for calculating work is W = F × d × cos(θ), where W is work, F is the force applied, d is the distance moved, and 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 movement occurs, how much work is done?

Back

If no movement occurs, 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 directly related to the force applied; greater force results in more work done, provided there is movement in the direction of the force.

Front

What does it mean if work is negative?

Back

Negative work occurs when the force applied is in the opposite direction to the movement of the object, indicating that energy is being taken away from the system.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration, commonly gravitational potential energy, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the difference between work and energy?

Back

Work is the process of energy transfer when a force is applied over a distance, while energy is the capacity to do work.