Peet JH Semester Exam REVIEW - FALL 2024

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation that shows the flow of energy through different trophic levels in an ecosystem, illustrating how energy decreases as it moves from producers to various levels of consumers.

Front

What is Trophic Level 1?

Back

Trophic Level 1 consists of producers, such as plants and algae, which convert sunlight into energy through photosynthesis.

Front

What is Trophic Level 2?

Back

Trophic Level 2 consists of herbivores, which are animals that eat plants and obtain energy from them.

Front

How much energy is typically transferred from one trophic level to the next?

Back

Typically, only about 10% of the energy from one trophic level is transferred to the next level.

Front

If grass receives 3,762 kcal of energy, how much energy do herbivores receive?

Back

Herbivores would receive approximately 376.2 kcal of energy from the grass.

Front

What is a distance-time graph?

Back

A distance-time graph is a visual representation that shows how the distance traveled by an object changes over time.

Front

What does a steeper slope on a distance-time graph indicate?

Back

A steeper slope indicates that the object is moving at a greater constant speed.

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined.

Front

What is the net force if two forces of 20 N to the right and 40 N to the left are acting on an object?

Back

The net force would be 20 N to the right.

Front

What is conduction?

Back

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