RC #2: SVA + Newton's Laws; 8.6 B, C

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, expressed in units such as meters per second (m/s) with a directional component (e.g., 30 m/s east).

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 forces to be balanced?

Back

Balanced forces occur when two or more forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an unbalanced force.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, typically measured in meters per second squared (m/s²).

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the significance of direction in motion?

Back

Direction is crucial in motion as it determines the velocity of an object; two objects can have the same speed but different velocities if they are moving in different directions.

Front

What is an example of an unbalanced force?

Back

An unbalanced force occurs when one force acting on an object is greater than the opposing force, causing the object to accelerate in the direction of the greater force.

Front

What is the relationship between mass and force according to Newton's Second Law?

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 = m * a).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; it is directly related to the mass of the object.