Forces and Net Force

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined. It determines the object's acceleration.

Tags

NGSS.MS-PS2-2

Front

How do you calculate net force?

Back

Net force is calculated by adding all the forces acting on an object, taking into account their direction. For example, if 5 N right and 3 N left are acting on an object, the net force is 2 N right.

Tags

NGSS.MS-PS2-2

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

What are the types of friction?

Back

The main types of friction are static friction (preventing motion), kinetic friction (during motion), and rolling friction (when an object rolls over a surface).

Front

How can friction be reduced?

Back

Friction can be reduced by making surfaces smoother, using lubricants (like oil), or changing the type of friction (e.g., from sliding to rolling).

Front

What is balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in a net force of 0 N, meaning the object does not accelerate.

Front

What is unbalanced force?

Back

Unbalanced forces are not equal and opposite, resulting in a net force that causes an object to accelerate in the direction of the greater force.

Tags

NGSS.MS-PS2-2

Front

What is the effect of net force on motion?

Back

The net force determines the acceleration of an object according to Newton's second law (F=ma). If net force is zero, the object remains at rest or in uniform motion.

Tags

NGSS.MS-PS2-2

Front

What is the unit of force?

Back

The unit of force is the Newton (N). One Newton is the force required to accelerate a 1 kg mass by 1 m/s².

Front

What happens when two forces act in the same direction?

Back

When two forces act in the same direction, their magnitudes are added together to find the net force.

Tags

NGSS.MS-PS2-2