8th Grade Phys Sci - S8P3 (with graphs)

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined. If the forces are balanced, the net force is zero. If they are unbalanced, the net force is the difference between the forces.

Front

What does it mean for forces to be balanced?

Back

Forces are balanced when they are equal in size but opposite in direction, resulting in no net force and no change in motion.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. It is a vector quantity, meaning it has both magnitude and direction.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It can be a change in speed or direction.

Front

What happens when forces are unbalanced?

Back

When forces are unbalanced, there is a net force acting on the object, causing it to accelerate in the direction of the greater force.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

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 it mean for an object to be in motion?

Back

An object is in motion if its position changes relative to a reference point over time.

Front

What is a force?

Back

A force is a push or pull exerted on an object that can cause it to change its velocity (accelerate).

Front

What is the significance of a graph in physics?

Back

Graphs in physics visually represent relationships between variables, such as distance vs. time or force vs. acceleration, making it easier to analyze data.