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WorksheetsSEHS B.2.2 Fluid Mechanics
Total questions: 16
Worksheet time: 8mins
What is a projectile?
An object that is pushed
An object that is thrown or dropped
An object that is floating
An object that is stationary
What primarily affects the path of a projectile?
Color of the object
Surface area of the object
Weight of the object
Initial velocity
What angle of projection maximizes range when the landing height is the same as the projection height?
30 degrees
90 degrees
60 degrees
45 degrees
What happens to the trajectory when the projection height increases?
It decreases
It becomes flatter
It becomes higher
It remains the same
What is the effect of air resistance on faster moving projectiles?
It makes them float
It has no effect
It decreases their speed
It increases their speed
What is buoyancy?
A force acting vertically on objects in a fluid
A force acting horizontally on objects in a fluid
A force that increases weight
A force that decreases speed
What does drag force depend on?
The color of the object
The shape of the object
The temperature of the fluid
The weight of the object
What is the Magnus effect?
The resistance of air on a stationary object
The buoyancy of an object in water
The lift force on a rotating object
The effect of gravity on a projectile
What is the relationship between fluid velocity and pressure according to Bernoulli's principle?
Lower velocity equals lower pressure
Higher velocity equals lower pressure
Pressure has no relation to velocity
Higher velocity equals higher pressure
What type of drag is caused by the interaction between the surface of the body and fluid molecules?
Buoyant drag
Surface drag
Form drag
Wave drag
What is the effect of drafting in sports?
Has no effect on drag
Reduces drag
Increases speed
Increases drag
What happens to wave drag as swimming speed increases?
Wave size decreases
Wave size increases
Wave drag decreases
Wave drag has no effect
What is the primary factor that affects the stability of static positions?
Weight of the object
Center of mass
Surface area
Fluid density
What is the effect of environmental conditions on air resistance?
They have no effect
They only affect water resistance
They can significantly affect it
They only affect buoyancy
What is the primary cause of turbulence in a fluid?
High viscosity
Low velocity
Irregular flow patterns
Constant temperature
How does increasing the surface area of an object affect drag force?
It decreases drag force
It has no effect
It increases drag force
It only affects buoyancy
