How do you calculate stopping distance?
Thinking distance + braking distance.
Thinking time + braking time.
Thinking distance × braking distance.
How can we reduce the braking distance?
Better brakes.
Quicker reaction times.
Increasing the object's mass.
How can we reduce the thinking distance?
Drinking a cup of tea.
Reducing the object's mass.
For a car travelling at 31 m/s the thinking distance is 21 m and the braking distance is found to be 75 m.
Calculate the stopping distance.?
54 m
96 m
1575 m
Which of the following best describes friction?
Friction is a force which always acts to oppose the motion of an object.
Friction is a force which always acts to help the motion of an object.
Friction is a force which always acts to accelerate an object.
Which of the following does not increase friction?
Grit on roads.
Chalk on hands.
Polishing a surface.
Which of the following does not reduce our reliance on fossil fuels for transport?
Using public transport.
Walking or cycling to school.
Switching from petrol to diesel.