Physics 1st Semester Review

Front

What is the formula for calculating the slope of a line?

Back

The slope of a line is calculated by dividing the rise (change in y) by the run (change in x).

Front

What is the velocity of an object in free fall after 4 seconds?

Back

The velocity of an object in free fall after 4 seconds is approximately -39.2 m/s (assuming acceleration due to gravity is -9.8 m/s²).

Front

At which point does a roller coaster car have the most kinetic energy?

Back

A roller coaster car has the most kinetic energy at the lowest point of the track, typically Point B.

Front

On which axis is the dependent variable plotted when graphing?

Back

The dependent variable is plotted on the y-axis.

Front

What is the velocity of an object at 2 seconds if it is moving at a constant speed of 4 m/s?

Back

The velocity of the object at 2 seconds is 4 m/s.

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

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.

Front

What does the term 'acceleration' mean in physics?

Back

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

Front

What is the formula for calculating acceleration?

Back

Acceleration is calculated using the formula a = (final velocity - initial velocity) / time.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.