BCA: 6th Grade: Science: Balance and Unbalanced Forces

Front

What is Newton's second law of motion?

Back

F=ma, which states that the force acting on an object is equal to the mass of that object multiplied by its acceleration.

Front

What is Newton's First Law also known as?

Back

The Law of Inertia, which states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the definition of speed?

Back

Speed is a way of measuring how quickly something is moving or being done.

Front

What can forces cause?

Back

Forces may or may not cause movement.

Front

Who formulated the three basic laws of motion?

Back

Sir Isaac Newton, an English physicist and mathematician in the 1600s.

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

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

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Unbalanced forces are not equal and can cause an object to accelerate, change direction, or change shape.

Front

How does friction affect motion?

Back

Friction is a force that opposes motion between two surfaces in contact, affecting the speed and direction of moving objects.