Texas 6th Grade Science Flashcard

Front

What is the primary form of energy transformation in a solar panel?

Back

Solar energy to electrical energy

Answer explanation

The primary transformation in a solar panel is from solar energy to electrical energy. Solar panels convert sunlight directly into electricity through the photovoltaic effect, making this the correct choice.

Tags

NGSS.HS-PS3-3

Front

What best describes potential energy?

Back

Energy stored due to position, like a ball on a hill

Answer explanation

Potential energy is best described as energy stored due to position, like a ball on a hill. This energy can be converted to kinetic energy when the ball rolls down, unlike the other options which describe different forms of energy.

Tags

NGSS.MS-PS3-2

Front

According to the Law of Conservation of Energy, which of the following is true?

Back

Energy can only be transformed from one form to another

Answer explanation

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another. Therefore, the correct choice is that energy can only be transformed from one form to another.

Tags

NGSS.MS-PS3-5

Front

What happens to an object when balanced forces act on it?

Back

The object remains at rest or moves at a constant speed

Answer explanation

When balanced forces act on an object, the net force is zero. This means the object will either remain at rest or continue to move at a constant speed, as there is no change in its state of motion.

Tags

NGSS.MS-PS2-2

Front

Which of Newton's Laws of Motion explains why a book remains at rest on a table until pushed?

Back

1st Law (Inertia)

Answer explanation

Newton's 1st Law of Motion, also known as the Law of Inertia, states that an object at rest will stay at rest unless acted upon by an external force. This explains why the book remains on the table until pushed.

Front

How long does it take for Earth to complete one full rotation on its axis?

Back

24 hours

Answer explanation

Earth takes 24 hours to complete one full rotation on its axis, which defines the length of a day. The other options, such as 12 hours, 30 days, and 365 days, refer to different time periods and are incorrect.

Front

Which of the following is a non-renewable resource? Solar energy, Wind energy, Coal, Hydroelectric energy

Back

Coal

Answer explanation

Coal is a non-renewable resource because it is formed from ancient organic matter and takes millions of years to form. In contrast, solar, wind, and hydroelectric energy are renewable resources that can be replenished naturally.

Front

What is the role of gravity in the solar system?

Back

It keeps planets in orbit around the Sun

Answer explanation

Gravity is the force that keeps planets in orbit around the Sun, ensuring they follow stable paths. This gravitational pull is essential for the structure and dynamics of the solar system.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

Example of a renewable resource: Natural gas, Oil, Wind energy, Nuclear energy

Back

Wind energy

Answer explanation

Wind energy is a renewable resource because it is generated from natural processes that are continuously replenished. In contrast, natural gas, oil, and nuclear energy are non-renewable resources.

Front

How does Earth's tilt affect the seasons?

Back

It results in varying amounts of sunlight reaching different parts of Earth

Answer explanation

Earth's tilt causes different areas to receive varying amounts of sunlight throughout the year, leading to the changing seasons. This variation in sunlight is the primary reason for seasonal differences, not distance or rotation.

Tags

NGSS.MS-ESS1-1