1st Semester Final Physical Science

Front

What is a wedge?

Back

A simple machine that consists of two inclined planes joined together, used to separate objects or hold them in place. Example: A knife.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion. Example: Riding a bike at a constant speed in a straight line.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. Steps include making observations, forming a hypothesis, conducting experiments, collecting data, and drawing conclusions.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken. Formula: Average Speed = Total Distance / Total Time.

Front

What happens when an object accelerates?

Back

An object can speed up, slow down, or change direction when it accelerates.

Front

What is the last step of the scientific method?

Back

To draw conclusions based on the data collected from experiments.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

What is a simple machine?

Back

A device that makes work easier by allowing us to push or pull over increased distances. Examples include levers, pulleys, and wedges.

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion. Formula: KE = 1/2 mv², where m is mass and v is velocity.