Ocean Powered Lesson 2 Vocabulary

What is the capacity of an object to hold energy?

• Kinetic store

• Gravitational potential store

• Chemical store

• Thermal store

Answer explanation

The capacity of an object to hold energy is referred to as its thermal store. This is because the thermal store represents the energy stored in an object due to its temperature. Other options, such as kinetic, gravitational potential, and chemical stores, represent different forms of energy but do not specifically relate to an object's capacity to hold energy.

Tags

NGSS.MS-PS3-3

Which energy store is associated with the movement of an object?

• Kinetic store

• Vibration store

• Nuclear store

• Electromagnetic store

Answer explanation

The kinetic store is associated with the movement of an object. Kinetic energy is the energy an object possesses due to its motion. The other options, such as vibration, nuclear, and electromagnetic stores, are not directly related to an object's movement.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What does the term 'linear' mean?

• Directly proportional

• Not directly proportional

• Nonlinear

• Ocean current

Answer explanation

The term 'linear' refers to something that is directly proportional. In mathematics and physics, a linear relationship or function can be graphically represented as a straight line. Thus, it means that one variable increases or decreases directly in proportion to another. Therefore, the correct answer is 'Directly proportional'.

Tags

NGSS.MS-PS3-1

What does the term 'nonlinear' mean?

• Directly proportional

• Not directly proportional

• Linear

• Ocean current

Answer explanation

The term 'nonlinear' refers to something that is not directly proportional. In other words, a change in one variable does not result in a proportional change in another variable. This is in contrast to 'linear' where changes are directly proportional, and 'ocean current' which is unrelated to the concept of linearity.

What is an ocean current?

• A pattern of movement of water in the ocean

• The horizontal flow of water caused by the rise or fall of the tide

• The difference in water height between the high and low tide

• The rise and fall of the sea caused by the Moon's gravitational pull

Answer explanation

An ocean current is a pattern of movement of water in the ocean. It is not related to the rise or fall of the tide, the difference in water height between high and low tide, or the rise and fall of the sea caused by the Moon's gravitational pull. Ocean currents are driven by various factors, including wind, temperature, and salinity differences, and play a crucial role in the Earth's climate and marine ecosystems.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

What is a tidal current?

• A pattern of movement of water in the ocean

• The horizontal flow of water caused by the rise or fall of the tide

• The difference in water height between the high and low tide

• The rise and fall of the sea caused by the Moon's gravitational pull

Answer explanation

A tidal current is the horizontal flow of water caused by the rise or fall of the tide. This is different from the general movement of water in the ocean, the difference in water height between high and low tide, or the rise and fall of the sea caused by the Moon's gravitational pull. The correct answer highlights the specific movement of water due to tidal changes.

Tags

NGSS.MS-ESS2-6

What is tidal range?

• A pattern of movement of water in the ocean

• The horizontal flow of water caused by the rise or fall of the tide

• The difference in water height between the high and low tide

• The rise and fall of the sea caused by the Moon's gravitational pull

Answer explanation

The tidal range is the difference in water height between the high and low tide. This means it's not about the pattern of water movement, the horizontal flow caused by tides, or the rise and fall of the sea due to the Moon's gravitational pull. Instead, it's about the variation in water level during a tidal cycle.

Tags

NGSS.MS-ESS1-1

What causes tides in the ocean?

• A pattern of movement of water in the ocean

• The horizontal flow of water caused by the rise or fall of the tide

• The difference in water height between the high and low tide

• The rise and fall of the sea caused by the Moon's gravitational pull

Answer explanation

Tides in the ocean are caused by the Moon's gravitational pull, which results in the rise and fall of the sea. The other options refer to various aspects of tides, but the correct answer focuses on the primary cause, which is the Moon's gravitational influence on Earth's waters.

Tags

NGSS.MS-PS2-4