Curriculum
Course: IB Physics HL
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Curriculum

IB Physics HL

Theme A — Space, Time and Motion

0/125 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/105 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/73 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/77 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/89 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/43 Dr Dabour Hub Science Diagram and Course Material
Quiz

A.2.5 Contact Forces – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The normal reaction on an object resting on a horizontal table (no other vertical forces) equals
Its mass
Zero
Twice its weight
Its weight
2.
A 10 kg block rests on a slope of 30°. The normal force is closest to
49 N
85 N
98 N
170 N
3.
A 4.0 kg mass hangs from a rope at rest. The tension is
4.0 N
19.6 N
0
39 N
4.
A person in a lift feels lighter when the lift
Accelerates downwards
Accelerates upwards
Moves up at constant velocity
Is at rest
5.
Contact forces originate from
Gravity
Electromagnetic forces between atoms
Nuclear forces
Inertia
6.
A 3.0 kg block is pulled across a smooth floor by a rope at 60° above the horizontal with tension 20 N. The horizontal acceleration is
6.7 m s⁻²
5.8 m s⁻²
3.3 m s⁻²
10 m s⁻²
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Part of Theme A — Space, Time and Motion — see every lesson and quiz in this unit.
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