Sliding Friction
Sliding friction is the force that resists the motion of an object sliding across a surface. It is caused by the microscopic roughness and irregularities on the surfaces of the object and the surface it is sliding on.
Factors Affecting Sliding Friction
- Surface roughness: Rough surfaces have higher sliding friction compared to smooth surfaces.
- Weight of the object: Heavier objects have greater sliding friction than lighter objects.
- Material of the surfaces: Different materials have different coefficients of friction, affecting the sliding friction.
Effects of Sliding Friction
Sliding friction causes wear and tear on surfaces and can generate heat. It also affects the efficiency of machines and the performance of vehicles.
Reducing Sliding Friction
Sliding friction can be reduced by using lubricants such as oil or grease, or by using smoother surfaces.
Study Guide
.◂Science Worksheets and Study Guides Fourth Grade. Introduction to animals
Study Guide
Introduction to animals 
Worksheet/Answer key
Introduction to animals Worksheet/Answer key
Introduction to animals Worksheet/Answer key
Introduction to animals Vocabulary/Answer key
Introduction to animals Vocabulary/Answer key
Introduction to animals Vocabulary/Answer key
Introduction to animals Vocabulary/Answer key
Introduction to animals
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Concepts of Life Science (SC1, SC2, SC3)
The student demonstrates an understanding of how science explains changes in life forms over time, including genetics, heredity, the process of natural selection and biological evolution by showing the relationship between physical characteristics of Alaskan organisms and the environment in which they live.