Motion and Forces Flashcard Recview

Front

What is acceleration?

Back

Acceleration is the rate at which an object's velocity changes over time. It can occur due to a change in speed, direction, or both.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause a change in an object's motion. They result in a net force acting on the object.

Front

What is speed?

Back

Speed is a scalar quantity that refers to how fast an object is moving, measured as distance traveled per unit of time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, pulling objects towards the center of the Earth.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in an object's motion.

Front

What unit is commonly used to measure speed?

Back

Common units for measuring speed include meters per second (m/s) and miles per hour (mph).

Front

What happens to an object when it experiences acceleration?

Back

An object experiencing acceleration will change its speed, direction, or both.

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 kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other.