Physical Science Teacher Made Exam

Front

What is displacement in physics?

Back

Displacement is the shortest distance from the initial to the final position of an object, along with the direction. It is a vector quantity.

Front

What does a constant speed graph look like?

Back

A constant speed graph is a straight line on a distance-time graph, indicating that the object covers equal distances in equal intervals of time.

Front

How can the output voltage of an electrical generator be increased?

Back

The output voltage can be increased by increasing the number of coils in the generator's electromagnet.

Front

What is the half-life of a substance?

Back

The half-life is the time required for half of the substance to decay or be transformed into another substance.

Front

What is the least chemically reactive element in the alkaline earth metals group?

Back

Beryllium (Be) is the least chemically reactive element in the alkaline earth metals group.

Front

What is the formula for calculating speed?

Back

Speed = Distance / 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.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as displacement, velocity, and force.

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has only magnitude and no direction, such as mass, temperature, and distance.

Front

How does increasing the number of coils in a generator affect its performance?

Back

Increasing the number of coils in a generator enhances its ability to produce a higher output voltage.