1. Half Test – Grade 11
Vector Components, Relative
Motion & Projectile Motion
Test on Thursday December 4th, 2014
2. Vector components:
• Know how to find total displacement by adding
vector components. This method replaces using
scaled vector components.
Relative Motion:
• Know how to set up the vector equation:
( Example: v a/g + v p/a = v p/g )
• Know how to correctly draw the vector diagram.
• Know that a North Wind actually blows South.
• Know that “in still air” or “in still water” refers to
the speed relative to the air or water and that the
air or water is NOT actually still.
3. Projectile Motion:
• Know how to solve both horizontal and
vertical projectile motion problems.
• Know that the time of flight is found from
analyzing the vertical motion only. And,
longer times of flight occur when the initial
upwards vertical velocity component gets
larger.
• Maximum range is obtained when the initial
velocity is angled at 45 degrees to the
horizontal.
4. • Know how to calculate range.
• You must remember how to calculate time of
flight using: kinematics equations and
quadratic formula.
• Know how to calculate final velocity of the
projectile before it hits the ground ( or water)
• Know how to calculate maximum height.
• Know how to find time of flight for a
symmetrical trajectory (you could still use the
quadratic formula with c = 0, but the method
done in class should be easier.)
5. Test is out of 22 marks.
• There will be 4 T/F questions (1 mark each)
• One communication question out of 3
• Two application problems
• Two problem solving questions
• One not-so-easy and no part mark bonus
question (this will be a PS question).
