Physical Science 1st Semester Benchmark 23-24

Front

The speed you read on a speedometer is ____

Back

instantaneous speed

Front

The sum of kinetic energy and potential energy within a system is called ____

Back

mechanical energy

Front

In a velocity vs. time graph, if the line is sloping upwards, the object is experiencing ____

Back

positive acceleration

Front

Calculate the kinetic energy of a 3 kg toy moving at 12 m/s. KE=1/2mv²

Back

216 J

Front

Which of the following is not a type of potential energy: chemical, elastic, gravitational, kinetic?

Back

kinetic

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv²

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is the unit of energy in the International System of Units (SI)?

Back

Joule (J)

Front

What does a flat line on a velocity vs. time graph indicate?

Back

The object is at rest or moving at a constant velocity.