Physics Kinetic Energy Quiz
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Questions and Answers

What happens to the kinetic energy of an object as its mass increases, assuming its speed remains constant?

  • Kinetic energy increases proportionally to the increase in mass. (correct)
  • Kinetic energy remains constant.
  • Kinetic energy decreases proportionally to the increase in mass.
  • Kinetic energy increases exponentially to the increase in mass.
  • Consider two objects, one with a mass of 1 kg and the other with a mass of 2 kg. Both objects are moving at the same speed. Which object has more kinetic energy?

  • The object with a mass of 1 kg.
  • Both objects have the same kinetic energy.
  • The object with a mass of 2 kg. (correct)
  • It is impossible to determine without knowing the velocity.
  • A car traveling at 20 m/s has its speed doubled. What happens to its kinetic energy?

  • The kinetic energy stays the same.
  • The kinetic energy halves.
  • The kinetic energy quadruples. (correct)
  • The kinetic energy doubles.
  • What is the kinetic energy of a 5 kg object moving at 10 m/s?

    <p>250 Joules (B)</p> Signup and view all the answers

    Two objects have the same kinetic energy, but one object has twice the mass of the other. How do their speeds compare?

    <p>The heavier object is moving at half the speed of the lighter object. (A)</p> Signup and view all the answers

    Quale medicamento esseva usate pro tratar le intoxication per acetaminophen?

    <p>N-acetylcysteine (C)</p> Signup and view all the answers

    Quale agente causa dilatation del cardiomyopathies?

    <p>Anthracyclines (A)</p> Signup and view all the answers

    Quale medicamento esseva usate pro tratar le intoxication per benzodiazepines?

    <p>Flumazenil (B)</p> Signup and view all the answers

    Quale del sequente drogas pote causar torsades de pointes?

    <p>Antibioticos macrolide (C), Antidepressivos tricyclic (E)</p> Signup and view all the answers

    Quale del sequente medicamentos esseva usate pro tratar le intoxication per opioides?

    <p>Naloxone (D)</p> Signup and view all the answers

    Quale del sequente drogas pote causar un reaction de infusion de vancomycin?

    <p>Vancomycin (B)</p> Signup and view all the answers

    Quale del sequente drogas esseva usate pro tratar le intoxication per mercurio?

    <p>Succimer (D)</p> Signup and view all the answers

    Quale del sequente drogas esseva usate pro tratar le intoxication per salicylates?

    <p>NaHCO3 (A)</p> Signup and view all the answers

    Study Notes

    Specific Toxicity Treatments

    • Acetaminophen: Treatment: N-acetylcysteine (replenishes glutathione)
    • AChE Inhibitors/Organophosphates: Treatment: Atropine, pralidoxime
    • Antimuscarinic/Anticholinergic Agents: Treatment: Physostigmine (controls hyperthermia)

    Other Toxins

    • Arsenic: Treatment: Dimercaprol, succimer

    • Benzodiazepines: Treatment: Flumazenil

    • Beta-Blockers: No specific treatment mentioned.

    • Carbon Monoxide: Treatment: 100% O2, hyperbaric O2

    • Copper: Treatment: "Penny" cillamine (penicillamine), trientine (3 copper pennies), hydroxocobalamin, nitrites + sodium thiosulfate

    • Cyanide: Treatment: Hydroxocobalamin, nitrites + sodium thiosulfate

    • Dabigatran: Treatment: Idarucizumab

    • Digoxin: Treatment: Digoxin-specific antibody fragments, andexanet alfa

    • Direct Factor Xa Inhibitors (e.g., apixaban): Treatment: Andexanet alfa

    • Heparin: Treatment: Protamine sulfate

    • Iron (Fe): Treatment: Deferoxamine, deferasirox, deferiprone

    • Lead: Treatment: Penicillamine, calcium disodium EDTA, dimercaprol, succimer (correct lead poisoning in PEDS patients).

    • Mercury: Treatment: Dimercaprol, succimer; fomepizole > ethanol, dialysis

    • Methanol/Ethylene Glycol (antifreeze): Treatment: Fomepizole, ethanol dialysis, methylene blue, vitamin C (reducing agent)

    • Methemoglobinemia: Treatment: Methylene blue, vitamin C (reducing agent)

    • Methotrexate: Treatment: Leucovorin

    • Opioids: Treatment: Naloxone

    • Salicylates: Treatment: NaHCO3 (alkalinizes urine), dialysis, NaHCO3 (stabilizes cardiac cell membrane).

    • TCAs (Tricyclic antidepressants): No specific treatment mentioned.

    • Warfarin: Treatment: Vitamin K (delayed effect), prothrombin complex concentrate/FFP (immediate effect)

    Drug Reactions - Cardiovascular

    • Coronary Vasospasm: Cocaine, Amphetamines, Sumatriptan, Ergot alkaloids (CASE)
    • Cutaneous Flushing: Vancomycin, Adenosine, Niacin, Calcium channel blockers, Echinocandins, Nitrates
    • Dilated Cardiomyopathy: Alcohol, anthracyclines (e.g., doxorubicin, daunorubicin); prevent with dexrazoxane, trastuzumab
    • Torsades de Pointes: Agents that prolong QT interval: Methadone, anti-arrhythmics (class IA, III), antibiotics (e.g., macrolides, fluoroquinolones), antipsychotics (e.g., ziprasidone), antidepressants (e.g., TCAs), antiemetics (e.g., ondansetron), antifungals (e.g., fluconazole).

    Vancomycin Infusion Reaction

    • Vancomycin infusion reaction (red man syndrome): Rate-dependent infusion reaction causing widespread pruritic erythema due to histamine release. Manage with diphenhydramine, slower infusion rate.

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    Description

    Test your understanding of kinetic energy and its relationship with mass and speed. This quiz covers key concepts such as how kinetic energy changes with variations in mass and velocity, and compares kinetic energy between objects with different characteristics. Dive in to solidify your knowledge in physics!

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