Semester Exam Review Aug-Dec.

Front

What is the law of superposition?

Back

The law of superposition states that in any undisturbed sequence of rocks, the oldest layers are at the bottom and the youngest layers are at the top.

Front

Which layer is the youngest according to the law of superposition?

Back

The youngest layer is the one at the top of the sequence.

Front

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

Back

A steeper line indicates that the object is moving at a faster speed.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is the average speed if a distance of 4 meters is covered in 5 seconds?

Back

Average speed = Total distance / Total time = 4 m / 5 s = 0.8 m/s.

Front

What is the formula for calculating the number of atoms in a compound?

Back

The number of atoms in a compound can be calculated by multiplying the subscript of each element by the number of molecules.

Front

How many atoms of Oxygen are in Fe(NO3)3?

Back

There are 9 atoms of Oxygen in Fe(NO3)3.

Front

What is the path of a golf ball after leaving a curved rim?

Back

The golf ball will follow a straight path after leaving the curved rim.

Front

What is the definition of speed in physics?

Back

Speed is the distance traveled per unit of time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.