Friction
Science · Grade 8 · Week 12 · 25 questions
Forces make things move, stop, speed up, slow down, or change direction. Understanding forces and motion is the foundation of physics and explains how the physical world works.
What you'll practise
- Identify different types of forces
- Explain Newton's laws of motion
- Calculate force, mass, and acceleration
- Understand friction and its effects
All 25 questions in this Friction quiz
Grade 8 Science — Friction: 25 practice questions with instant scoring and explanations.
- What is the primary cause of friction?
- Which factor DOES NOT affect friction?
- What is static friction?
- How does static friction prevent an object from moving?
- What happens when applied force exceeds static friction?
- What is sliding friction?
- Why is sliding friction generally less than static friction?
- What is rolling friction?
- Which of these involves rolling friction?
- What is fluid friction?
- Which is the least resistive type of friction?
- Why do cars use wheels instead of sliding on surfaces?
- How does the normal force affect friction?
- Why do we apply oil/lubricant to machinery?
- What is the coefficient of friction?
- In what situations is friction beneficial?
- How does roughness of surfaces affect friction?
- What is the purpose of brake pads in vehicles?
- Why do tires have treads (patterns)?
- What is skidding in vehicles?
- How does ice on roads affect friction?
- Which type of footwear provides better friction on wet surfaces?
- What happens to energy lost due to friction?
- In machines, what is the main purpose of minimizing friction?
- Why do ice skates glide smoothly on ice?
Question 1 of 250 correct so far