Physical Science Final S1

Front

What is the definition of weight in physics?

Back

Weight is the gravitational force exerted on an object, typically measured in newtons (N).

Front

What is inertia?

Back

Inertia is the property of an object to resist changes in its state of motion. The more mass an object has, the greater its inertia.

Front

What is the fastest method of thermal energy transfer through a vacuum?

Back

Radiation is the fastest method of thermal energy transfer through a vacuum.

Front

What is conduction?

Back

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

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

How does temperature affect the rate of thermal energy transfer in metals?

Back

Metals with lower specific heat capacities will experience a faster increase in temperature when exposed to the same heat source.

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g). On Earth, g is approximately 9.81 m/s².

Front

What is the difference between mass and weight?

Back

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

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 specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of one kilogram of a substance by one degree Celsius.