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Worksheets

Logical Fallacy Practice

Total questions: 35

Worksheet time: 30mins

Name
Class
Date
1.

I guess I should buy my 12-year-old daughter an iPhone. Everyone at her new school has one and I want her to fit in with the other kids.

a)

ad hominem

b)

slippery slope

c)

ad populum

d)

straw man

2.

If you don’t say the Pledge of Allegiance, then you must be a traitor.

a)

false dilemma

b)

post hoc

c)

ad populum

d)

false authority

3.

Every time I wash my car, it rains the next day. My car washing definitely affects the weather.

a)

hasty generalization

b)

slippery slope

c)

post hoc

d)

ad populum

4.

Studies show it takes up to seven years for the human body to digest a piece of gum.

a)

ad hominem

b)

red herring

c)

hasty generalization

d)

false authority

5.

Charlie: I think we should put more money into schools. Quality public education is so important.


Bob: So you’re saying we should cut military spending and spend it instead on more spiral notebooks and crayons? I guess you want our country to be a weak, defenseless target for terrorists.

a)

straw man

b)

false authority

c)

ad populum

d)

circular reasoning

6.

I’m raising funds to help cure XYZ disease. If you don’t donate, then you’re part of the problem.

a)

hasty generalization

b)

non sequitur

c)

red herring

d)

false dilemma

7.

Many women claim that they want to live in a peaceful world, but we must remember that there were no nuclear weapons before women were given the right to vote.

a)

post hoc

b)

circular reasoning

c)

straw man

d)

red herring

8.

My opponent raises a good point, but can we really trust him? I mean, he moved to this town only two years ago and everyone knows that his wife left him.

a)

ad hominem

b)

non sequitur

c)

loaded questioning

d)

false authority

9.

My cousin Kit works as a mechanic at Oil Changers and she says that renewable energy sources, such as solar and wind power, aren’t going to provide any help in fixing our nation’s energy crisis.

a)

straw man

b)

false analogy

c)

false authority

d)

ad populum

10.

Oh, please. What would you know about labor laws? You don’t even have a job.

a)

ad hominem

b)

loaded questioning

c)

hasty generalization

d)

slippery slope

11.

If I don’t take this A.P. class, then I won’t do well on the exam. If I don’t do well on the A.P. exam, then I can’t get into a good college. If I can’t get into a good college, then I’ll never get a good job. If I can’t get a good job, then I’m going to have to live in my parents’ basement forever. Guess I’ll sign up for the A.P. class.

a)

circular reasoning

b)

straw man

c)

slippery slope

d)

red herring

12.

We think this new MallTime game app will be a success because all girls like shopping.

a)

non sequitur

b)

hasty generalization

c)

post hoc

d)

red herring

13.

Charlie: Illegal posting and sharing of songs online is crippling the music industry.

David: You couldn’t be more wrong; the music industry is doing just fine. I can’t believe you think the government should be allowed to regulate what I share with my “friends.” No one wants a world where I can’t loan a book to my girlfriend, let my roommate borrow my iPod, or share a funny meme with my blog followers.

a)

false analogy

b)

loaded questioning

c)

straw man

d)

false authority

14.

There is a global recession and more people are becoming hungry and desperate. Crimes of theft and robbery have been increasing at an alarming rate lately. The only way to solve this problem is by reinstating the death penalty

a)

False dichotomy

b)

Weak analogy

c)

Straw man

d)

Red herring

15.

Bill: I think capital punishment is wrong.


Adam: No it isn't. If it was wrong, it wouldn't be legal.


Of which fallacy is this an example?

a)

Causal Fallacy

b)

Circular Argument

c)

Bandwagon Fallacy

d)

Slippery Slope

16.

Ricky says, "There is no concrete proof that humans evolved from apes. Therefore, Darwin's Theory of Evolution cannot be true."


What fallacy has Ricky committed?

a)

False Authority

b)

Red Herring

c)

Ad Ignorantium

d)

Bandwagon Fallacy

17.

Debbie: I think capital punishment is a necessary component of our justice system and should remain legal.


Dylan: So you are saying that murder should be legal and it is okay for us to go around killing people just because we think they deserve it? That isn't right.


Of what fallacy is Dylan guilty?

a)

Appeal to Ignorance

b)

Straw Man

c)

Ad Hominem

d)

Bandwagon Fallacy

18.

Dana is trying to raise money for her university's library. In her address to the board of trustees, she says, "We must raise tuition to cover the cost of new books. Otherwise the library will be forced to close."


Of what fallacy is this an example?

a)

False Dilemma

b)

Slippery Slope

c)

Causal Fallacy

d)

Circular Argument

19.

"When you start saying things to me like I need to eat healthier or get more exercise, that says to me that you think I'm fat. I like me, and I like the way I look, and more people should have better self esteem. We have a real problem with self image in this country."


What fallacy is this?

a)

Slippery Slope

b)

Hasty Generalization

c)

Red Herring

d)

Ad populum

20.

Identify which fallacy is being used in this meme:


*For some context: The Iran Nuclear deal limited the amount and type of nuclear energy produced by Iran. This meme claims the Nuclear deal will create a nuclear war that kills our children.

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

21.

Identify which fallacy is being used in the quotation:


"President Obama promised to begin to slow the rise of the oceans and heal the planet. MY promise...is to help you and your family.” (Mitt Romney)

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

22.

Identify which fallacy is being used in the meme:

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

23.

Identify which fallacy is being used (and then refuted) in this headline:

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

24.

Identify which fallacy is being used in the quotation:


“Marriage is either a conjugal union of a man and a woman designed to unite husband and wife to each other and to any children who may come from their union, or it is a relationship for the mutual benefit of adults which the state recognizes and to which it grants certain benefits. Whoever is for one, is opposed to the other.” (Archbishop Cordileone)--here the speaker is saying that marriage is either for love/children OR for legally benefits and that it cannot be for both reasons.

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

25.

Identify which fallacy is being used in this meme:


*Explanation: Republican Marco Rubio is being called a snowflake for wanting to avoid town hall meetings with hecklers through a comparison with Democrat Gabrielle Giffords who survived a shooting by someone who disagreed with her politics.


There are two answers here!

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

26.

Identify which fallacy is being used in the quotation:


“Well, I actually think she’s a hopeless case. I call her Pocahontas, and that’s an insult to Pocahontas. I actually think that she is just somebody who has got a lot of hatred, a lot anger.” (President Trump in response to Elizabeth Warren’s comments that reducing funding for healthcare would result in people dying.)

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

27.

Identify which fallacy is being used in the quotation:


“Donald Trump is an ‘insecure moneygrubber... loud, outrageous, offensive, small, a failure and fraudster-in-chief.” (Senator Elizabeth Warren in response to comments made by Donald Trump where he said he hoped for a stock market crash so he could profit from it)

a)

non sequitur

b)

ad hominen

c)

straw man

d)

false dilemma

e)

false authority

28.

Jeff is preparing to create a commercial for a new energy drink. He visits a local high school and surveys students in an English class about their beverage preferences. The majority of the class says they prefer grape flavored drinks, so Jeff tells his superiors that grape is the flavor favored most by high school students.


What error in reasoning has Jeff made?

a)

Appeal to Authority

b)

Slippery Slope

c)

Hasty Generalization

d)

Ad Hominem

29.

Person 1: Bicycle infrastructure should be expanded because cycling is a sustainable mode of transportation.

Person 2: We should not build bike lanes because cyclists run red lights and endanger pedestrians.


What logical fallacy is this?

a)

Band Wagon

b)

Either/Or

c)

Hasty Generalization

d)

Straw Man

30.

Mike: It is morally wrong to cheat on your spouse, why on earth would you have done that?

Ken: But what is morality exactly?

Mike: It’s a code of conduct shared by cultures.

Ken: But who creates this code?...


What logical fallacy is this?

a)

ad hominem

b)

red herring

c)

band wagon

d)

false analogy

31.

What logical fallacy is this?

a)

ad hominem

b)

ad populum

c)

false authority

d)

circular reasoning

32.

Plagiarism is deceitful because it is dishonest.

a)

begging the question

b)

ad hominum

c)

ad populum

d)

ad ignorantium

33.

The book "Investing for Dummies" really helped me understand my finances better. The book "Chess for Dummies" was written by the same author, was published by the same press, and costs about the same amount, so it would probably help me understand my finances as well.

a)

false analogy

b)

non sequitur

c)

red herring

d)

slippery slope

34.

We can’t freeze the academic year because then students won’t graduate on time. Next thing you know most people will be unemployed and will resort to crime. The crime rate will skyrocket and society will collapse.

a)

loaded questioning

b)

circular reasoning

c)

ad populum

d)

slippery slope

35.

I know three redheads who have terrible tempers, and since Annabel has red hair, I’ll bet she has a terrible temper too.

a)

hasty generalization

b)

non sequitur

c)

false authority

d)

slippery slope