# Friction and drag

## Quiz by Andrea French

Key Stage 3
Science
English National Curriculum

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10 questions
• Q1
Which force is acting between these two forces?
Magnetism
Friction
Electrostatic
Gravitational
120s
• Q2
What will happen to this block if the pushing force is removed?
It will carry on moving at a constant speed
It will slow down and stop
It will speed up
Nothing
120s
• Q3
Friction is a contact force. The force acts between objects that touch each other. Which of these are other contact forces?
Reaction, drag, air resistance, water resistance
Drag, air resistance, water resistance
Gravitational, air resistance and water resistance
Magnetism, drag, water resistance
120s
• Q4
Gravitational force is a non-contact force. it acts between bojects that do not have to be touching. Which of these are other non-contact forces?
Magnetism and electrostatic
Friction and magnetism
Electrostatic and drag
Air resistacne and water resistance
120s
• Q5
Which force is this fish experiencing?
Gravitational force
Water resistance
Air resistance
Magnetism
120s
• Q6
This freefaller has balanced forces. How do we describe his movement?
Accelerating
Terminal velovity (speed)
Zero
Decelerating
120s
• Q7
What effect does the parachute have on the terminal velocity of the parachutist?
Makes it smaller
Makes it bigger
Nothing
Not sure
120s
• Q8
What have the cyclists done to reduce the air resistance?
Streamlining
Removed air from the room
Less force
More force
120s
• Q9
How can the friction be reduced here?
Lubrication
Salt
Heating it
Water
120s
• Q10
What is the independent variable for this investigation?
Size of parachute
Height of drop
Material
Person dropping it
120s

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