الاثنين، 20 مايو 2024، 8:40 ص
الموقع: Young Education
المقرر: Physics (--->)
قاموس المصطلحات: Physics Dictionary

acceleration of free fall

the acceleration due to the pull of the Earth on a body

average speed

the ratio of distance travelled to total time taken

average velocity

the ratio of displacement to total time taken

coefficient of dynamic friction

the ratio of the force of friction to the normal reaction force on a body while the body is sliding on a surface

coefficient of static friction

the ratio of the maximum force of friction that can develop between two bodies to the normal reaction force on a body while the body is at rest

conservation of energy

the principle that energy cannot be destroyed or created but can only be changed from one form into another

conservation of momentum

when the net force on a system is zero, the total momentum of the system is constant

conservative forces

forces for which work done is independent of the path followed

conserved

a quantity that stays the same before and after interaction

contact force

another name for a reaction force