7.8A, 7.8BC, & 7.9B 6th 9wks Assessment

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, which can occur in a vacuum or through matter.

Front

How does radiation transfer thermal energy from the Sun to Earth?

Back

Radiation allows thermal energy from the Sun to travel through space and warm the Earth without needing a medium.

Front

What causes a planet's speed to change as it orbits the Sun?

Back

The speed of a planet changes due to the gravitational pull from the Sun, which is stronger when the planet is closer.

Front

What would happen to Earth if there was no gravity from the Sun?

Back

Without the influence of gravity, Earth would move in a straight line through space instead of orbiting the Sun.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) where warmer parts rise and cooler parts sink.

Front

Why do hot air balloons rise?

Back

Hot air balloons rise due to convection; the air inside the balloon is heated, becoming less dense than the cooler air outside.

Front

What is the role of gravity in planetary motion?

Back

Gravity is the force that keeps planets in orbit around the Sun, affecting their speed and path.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

How does conduction differ from convection?

Back

Conduction is the transfer of heat through direct contact between materials, while convection involves the movement of fluids.

Front

What is the significance of thermal equilibrium?

Back

Thermal equilibrium occurs when two objects reach the same temperature, resulting in no net heat transfer between them.