Friction
Science · Grade 7 · Week 35 · 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 7 Science — Friction: 25 practice questions with instant scoring and explanations.
- Friction is a force that
- Static friction acts when
- Sliding friction occurs when
- Rolling friction is
- Fluid friction acts on objects moving through
- Friction increases with
- Which factor does NOT affect friction?
- Lubrication reduces friction by
- Drag is a type of
- Streamlining is used to
- Friction in machines is disadvantageous because it
- Friction is advantageous for
- The shape of a fish is streamlined to
- Friction between wheels and ground helps in
- Rough surfaces have
- The force of static friction can be
- When an object slides, the friction acting is
- Friction does NOT occur on
- A car's tire grip on road is due to
- Friction causes objects to
- Ball bearings reduce friction by
- The coefficient of friction is
- Friction can be reduced by
- Streamlined objects are designed to
- Friction between two surfaces depends on
Question 1 of 250 correct so far