Purpose: Reviews Grade 10 prerequisite skills and Unit 1 kinematics that you'll need for Unit 2. Your teacher uses this to identify gaps before forces problems begin.
Recall: kinematic eqs, vector decomposition, basic algebra. \( g = 9.8 \) m/sĀ²
Q1 ā Vector decomposition prereq
A force of \(50\) N is directed at \(30Ā°\) above the horizontal. Find the horizontal and vertical components.
Q2 ā Kinematics review
A car accelerates from \(10\) m/s to \(30\) m/s in \(5.0\) s. Calculate (a) the acceleration; (b) the distance covered.
Q3 ā Concept of mass vs. weight
Explain the difference between mass and weight. State the SI units for each. Would your mass change on the Moon? Would your weight?
Q4 ā Identifying forces
A book sits at rest on a table. List all forces acting on the book and identify their types (gravitational, normal, frictional, applied, tension).
[Sketch space ā book on table FBD]
Q5 ā Newton's 1st law (multiple choice)
An object moving with constant velocity must have:
Q6 ā Algebra rearrangement
Solve \( F_\text{net} = ma \) for \( a \), then evaluate when \( F_\text{net} = 24 \) N and \( m = 6.0 \) kg.
Q7 ā Friction in everyday life
Give two examples in which friction is helpful , and two in which it is harmful . Suggest an engineered solution that reduces unwanted friction.
SPH3U ā Physics, Grade 11 | Unit 2 Diagnostic | Ontario Curriculum 2008