Review - WARMUP

Front

What is conduction in the context of thermal energy transfer?

Back

Conduction is the process of heat transfer through direct contact between materials, where thermal energy moves from a warmer object to a cooler one.

Front

Describe the process of convection in heat transfer.

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases), where warmer, less dense areas rise and cooler, denser areas sink.

Front

What is the formula for calculating average speed?

Back

Average Speed = Total Distance / Total Time.

Front

Explain Newton's First Law of Motion.

Back

Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

Front

What is inertia in physics?

Back

Inertia is the tendency of an object to resist changes in its state of motion, whether at rest or moving.

Front

How does thermal energy move when a warm object is placed in a cooler environment?

Back

Thermal energy moves from the warmer object to the cooler surroundings until thermal equilibrium is reached.

Front

What is the role of air in convection currents during a fire?

Back

In a fire, hot air rises, creating a convection current that allows cooler air to sink, which can help in understanding smoke movement.

Front

What does a motion graph showing constant speed look like?

Back

A motion graph showing constant speed is represented by a straight line with a constant slope.

Front

What happens to the motion of an object when a net external force is applied?

Back

When a net external force is applied, the object's motion changes according to the direction and magnitude of the force.

Front

Define thermal equilibrium.

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature, resulting in no net heat transfer.