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Worksheets2.7-Impulse & Impulsive Force
Total questions: 10
Worksheet time: 20mins
Impulse is a (a)
Impulsive force is the (a) in a collision or impact in a short period of time
The symbol and unit for Impulse are
J and N/s
J and N s
F and N
W and N s
Which of the following situations does not require large impulse force?
A baseball competition
A karate expert breaking a piece of plank with his bare hands
A high jumper jumping across the pole onto a thick mattress
A mother pounding chillies with a pestle
A stationary hockey ball with a mass of 2 kg is given a horizontal impulse of 30.0 N s. What is the velocity of the ball after the impact?
10 m s-1
12 m s-1
15 m s-1
18 m s-1
A man applies a force of 15 N for 0.6 s when throwing a 0.4 kg stone. The impulse given to the stone is (a)
The following materials can reduce impulsive force.....
polystyrene packing
mattress for a high jump event
pestle and mortar
A hockey player uses a hockey stick to hit a hockey ball, causing the ball to travel with a velocity of 30 m s-1. If the mass of the hockey ball is 100 g and the time of impact between the hockey stick and the ball is 5 x 10-3 s, calculate the impulsive force exerted by the hockey ball.
600 N
-600 N
600 000 N
-600 000 N
Impulse can be determined by calculating the area under graph of
force (f) - time (t) graph
impulse (J) - time (t) graph
momentum (p) - time( t) graph
velocity (v) - time (t) graph
