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WorksheetsIMPULSE AND IMPULSIVE FORCE
Total questions: 10
Worksheet time: 5mins
A softball player moves his hand backward while catching a fast-moving ball. This movement of the hand is to
Increase the impulsive force
Increase the stopping time of the ball
Control the ball to stop it from falling
The diagram shows an athlete performing the high jump. What is the function of the mattress?
To reduce the collision time between the athlete and the mattress
To reduce the change of momentum of the athlete when he hits the mattress
To reduce the impulsive force acting on the athlete when he hits the mattress
Diagram 2 shows a parachutist landing with his legs bent. Why does the parachutist bend his legs?
To lengthen the time of impact of his feet with the ground
To shorten the time of impact of his feet with the ground
To lengthen the time of falling to the ground
Diagram 5 shows a box with a mass of 55 kg is dropped from a helicopter. At the moment before touching the ground, the velocity of the box is 12 ms -1. The box stops 2 seconds after touching the ground. What is the magnitude of the impulsive force acted on the box?
660 N
330 N
122 N
110 N
Diagram 2 shows an athlete bending his legs upon landing in a long jump event. The athlete bent his legs to reduce the
impulse on his feet
impulsive force on his feet
velocity just before landing
time of impact between his feet and the sand
Diagram 1 shows two identical eggs are dropped from the same height, h, onto a floor and a sponge respectively. Which inference is correct?
The impulsive force depends on the velocity of the egg
The impulsive force depends on the time of impact
The impulsive force depends on gravitational force
The impulsive force depends on the height of the egg
Diagram 4 shows a martial art student breaking a pile of bricks. What is the physics concept that makes the brick break?
Impulsive force
Momentum
Pressure
Impulse
Diagram 2 shows a golfer hitting a golf ball. Impulsive force is produced when
the golf club is swung at high velocity
the golf club is swung backward
the golf club hits the golf ball
the golf ball moves in the air
An athlete of mass 50kg falling on a mattress in a high jump competition. He hits the mattress at a velocity of 10 ms-1 and stops after 0.5 s.
1000 N
250 N
2.5 N
0 N
Diagram 6 shows a landing area for a long jump event. The sand is flattened after a long-jump is performed. Sand is used to reduce
impulse
momentum
impulsive force
effect of inertia
