Curriculum
Course: Igcse Physics
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Curriculum

Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

0/39 Dr Dabour Hub Science Diagram and Course Material

6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

1.6.2 Impulse – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The impulse of a force equals
force ÷ time
mass × time
kinetic energy
change in momentum
2.
A force of 50 N acts for 0.20 s. What is the impulse?
10 N s
250 N s
0.004 N s
50.2 N s
3.
An airbag reduces injury because it
reduces the momentum change
makes the car lighter
increases the stopping time and lowers the force
removes the impulse
4.
The area under a force-time graph represents
power
work done
acceleration
impulse
5.
A 2.0 kg object changes its velocity from 3.0 m/s to 8.0 m/s in 0.50 s. The average force is
20 N
10 N
2.5 N
40 N
6.
Which has the larger change in momentum: a ball stopping, or the same ball bouncing back with the same speed?
stopping
they are equal
bouncing back
neither changes
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Part of 1. Motion, Forces and Energy — see every lesson and quiz in this unit.
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