5.3 Motion

Front

What is motion in physics?

Back

Motion is the change in position of an object over time.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What factors can affect the distance an object travels?

Back

Factors include the initial speed, the force applied, friction, and the surface type.

Front

What is friction and how does it affect motion?

Back

Friction is a force that opposes motion between two surfaces in contact, affecting how far and fast an object can move.

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

How does mass affect the motion of an object?

Back

The mass of an object affects its inertia, which is the resistance to changes in motion; heavier objects require more force to change their motion.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can occur due to changes in speed or direction.

Front

What is the role of gravity in motion?

Back

Gravity is a force that pulls objects toward each other, affecting their motion, especially in free fall.

Front

What is Newton's first law of motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

What is Newton's second law of motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).