Semester 1 Exam Physical Science K.Burnett

Front

The rate of change of an object’s position is called _______.

Back

velocity

Front

What happens when two north poles of a magnet are placed together?

Back

They repel.

Front

What type of system is this?

Back

Open system.

Front

What will most likely happen to the temperature of a metal spoon left in boiling water?

Back

The temperature of the metal spoon will increase because heat energy from the boiling water will transfer to the spoon.

Front

A factor that changes in an experiment from manipulation of the independent variable is the ______.

Back

dependent variable.

Front

What is the definition of velocity?

Back

Velocity is the rate of change of an object's position, including direction.

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 an open system in science?

Back

An open system is one that can exchange both matter and energy with its surroundings.

Front

What is the principle of conservation of energy?

Back

The principle states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the definition of a dependent variable?

Back

A dependent variable is the factor in an experiment that is measured and affected by changes in the independent variable.