STAAR Review Makeup

Front

What is the theory of plate tectonics?

Back

The theory of plate tectonics explains how the Earth's outer shell (lithosphere) is divided into several plates that glide over the mantle, leading to geological phenomena such as earthquakes, volcanic activity, and the formation of mountains.

Front

How do fossil records support the theory of plate tectonics?

Back

Fossil records show that similar fossils are found on various modern continents, indicating that these continents were once connected.

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

How do you calculate net force?

Back

Net force can be calculated using the formula: Net Force = Mass x Acceleration (F = m*a).

Front

What is an action-reaction force pair?

Back

An action-reaction force pair refers to the forces two objects exert on each other, which are equal in magnitude and opposite in direction, as described by Newton's Third Law of Motion.

Front

What is the H-R diagram?

Back

The Hertzsprung-Russell (H-R) diagram is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Front

What are nonmetals?

Back

Nonmetals are elements that typically lack the characteristics of metals. They are usually poor conductors of heat and electricity and can be gases, liquids, or brittle solids at room temperature.

Front

What is the significance of the gym floor pushing up on the basketball?

Back

The gym floor exerts an upward force on the basketball, which is equal to the downward force the basketball exerts on the floor, allowing the ball to bounce back.

Front

What is the mass of an object?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, typically measured in meters per second squared (m/s²).