1. A shoe sits on a ramp without moving. As the angle of the ramp is increased, the shoe starts moving. This is because:

a) the coefficient of static friction has decreased

b) the component of gravity acting along the plane of the ramp has increased

c) the normal force has increased

d) the component of the normal force along the ramp has increased

2. Choose TWO of the following and draw a neat, properly labelled free body diagram. Indicate the size of forces with the lengths of the arrows. i.e., if two forces are the same size draw them the same length and if one is much bigger draw it much longer.

a) The Space Shuttle accelerating vertically just after leaving the launch pad.

b) A car going straight on the highway at 100 km/h. c) c) A baseball just after it leaves the pitcher's hand.

3. A car has an accident when attempting to round a corner on a snowy/icy road. Which of Newton's Laws is being exemplified in the following paragraph, where the sentences have been separated? Place the number of the law after each statement which comprises the description of the motion or event. There are 4 of #1, 2 of #2 and 1 of #3.

a) A person shoots a hockey puck on the large ice surface. The puck seems to go forever. b) The driver turns the steering wheel but the slippery conditions result in the car failing to change direction. c) The car slides across the intersection without losing speed or changing direction. d) The car slams into a large snow bank and quickly comes to a stop. e) The driver (with no seatbelt or airbag) is "thrown" forward towards the windshield. f) The person slows down as the snowball they are rolling gets bigger. g) The windshield is broken and the driver's nose is also broken and very painful.