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AP Physics 1 Unit 8: Fluids: Density, Buoyancy and Continuity — practice questions — page 2

Explore 93 free Unit 8: Fluids: Density, Buoyancy and Continuity questions in AP Physics 1 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 8: Fluids: Density, Buoyancy and Continuity questions and exercises with answers

Showing questions 31–60 of 93.

Order the equations of motionRead the answer and worked solution →Test these claims about Newton's lawsRead the answer and worked solution →Sort what raises or lowers pressureRead the answer and worked solution →Judge these floating and sinking linesRead the answer and worked solution →Match reflection words to their meaningRead the answer and worked solution →Match turning effect terms to meaningsRead the answer and worked solution →Order the steps to find a lever's M.A.Read the answer and worked solution →Spot the odd sound frequencyRead the answer and worked solution →What is the SI unit of force?Read the answer and worked solution →Which kind of motion happens when a fan blade rotates about its axis?Read the answer and worked solution →Moment of a force about a point is defined as which product?Read the answer and worked solution →The SI unit of moment of force is:Read the answer and worked solution →An anticlockwise moment is conventionally taken as:Read the answer and worked solution →Which everyday tool best illustrates a couple?Read the answer and worked solution →A body remains at rest under the action of several forces. This state is called:Read the answer and worked solution →Which of these is an example of dynamic equilibrium?Read the answer and worked solution →Which of the following is NOT a unit of moment of force?Read the answer and worked solution →Why is the handle of a door fixed near the edge opposite the hinges?Read the answer and worked solution →A force of 20 N is applied perpendicular to a spanner at a distance of 0.25 m from the bolt. What is the moment about the bolt?Read the answer and worked solution →A couple consists of two equal and opposite forces of 4 N each, separated by 0.30 m. The moment of the couple is:Read the answer and worked solution →Which statement about a body in dynamic equilibrium is correct?Read the answer and worked solution →1 kgf m equals approximately how many Nm?Read the answer and worked solution →A long spanner is preferred over a short one to open a tight bolt because a long spanner:Read the answer and worked solution →Why is a vehicle's steering wheel made large in diameter?Read the answer and worked solution →A force of 10 N acts at 60° to a 0.4 m long lever, measured from the pivot end. What is the moment about the pivot?Read the answer and worked solution →A heavy wheel is to be lifted using a crowbar. To minimise effort, the fulcrum should be placed:Read the answer and worked solution →Pick the bigger turning effectRead the answer and worked solution →Flip cards to link the lever classesRead the answer and worked solution →Judge these claims about sound wavesRead the answer and worked solution →Which of the following is a scalar quantity?Read the answer and worked solution →

Worked practice questions

Order the equations of motion

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Steps
  1. v = u + at
  2. s = ut + ½at²
  3. v² = u² + 2as
  4. s = (u + v)/2 · t
Instructions
Tap the equations of motion one by one in their standard order.

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Test these claims about Newton's laws

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Questions
  1. Statement is true
    Yes
    Statement
    An object at rest stays at rest unless a force acts on it.
  2. Statement is true
    Yes
    Statement
    F = ma is Newton's second law.
  3. Statement is true
    No
    Statement
    Action and reaction forces act on the same body.
  4. Statement is true
    Yes
    Statement
    Mass is a measure of inertia.
Instructions
Read each statement about force, inertia and motion, then tap true or false.

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Sort what raises or lowers pressure

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Items
  1. Item
    Sharper knife edge
    Answer
    left
  2. Item
    Smaller contact area
    Answer
    left
  3. Item
    Greater applied force
    Answer
    left
  4. Item
    Snowshoes' large area
    Answer
    right
  5. Item
    Tank treads vs car tyres
    Answer
    right
  6. Item
    Wider straps on heavy bag
    Answer
    right
Categories
Left
Increases
Right
Decreases
Instructions
Swipe each case left for Increases or right for Decreases, for what it does to pressure.

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More Physics topics

Unit 1B: Kinematics: 2D Motion & ProjectilesUnit 1C: Kinematics: Relative & Circular MotionUnit 2A: Newton's Laws and Translational EquilibriumUnit 2B: Friction, Gravitational and Normal ForcesUnit 3A: Work and Kinetic Energy TheoremUnit 3B: Potential Energy & Conservation of EnergyUnit 4A: Linear Momentum and ImpulseUnit 4B: Conservation of Linear Momentum & Collisions