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Chapter 5 Road science
Name:
Date:
Class/Group:
Instructions to students: write answers in spaces provided.
Multiple choice questions
Marks
1
A car travels a distance of 40 km in a time of 30 minutes. Its average speed is:
A 1.3 km/h.
B 20 km/h.
C 80 km/h.
D 1200 km/h.
Answer: C
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2
The acceleration of an object is:
A the distance covered in a particular time.
B the rate of change of speed.
C the tendency of an object to maintain its speed.
D its mass multiplied by its speed.
Answer: B
2
3
The inertia of an object is:
A the distance covered in a particular time.
B the rate of change of speed.
C the tendency of an object to maintain its speed.
D its mass multiplied by its speed.
Answer: C
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4
The momentum of an object is:
A the distance covered in a particular time.
B the rate of change of speed.
C the tendency of an object to maintain its speed.
D its mass multiplied by its speed.
Answer: D
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5
An experiment was done in which the stopping distances (metres) on different surfaces were measured for the same driver in the same vehicle travelling at the same speed. Which of the table rows shows the most likely results of the experiment?
Answer: B
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6
Newton's second law states that the acceleration of an object is directly proportional to the force applied and inversely proportional to the mass.
The correct formula for this relationship is:
A a = Fm.
B a = F/m.
C F = m/a.
D F = a/m.
Answer: A
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7
This is a graph showing the distance travelled by a car during a period of time.
Write down the letter that corresponds to the description of the motion of this car during this time.
J The car is accelerating.
K The car is decelerating.
L The car is moving and travelling at a constant speed.
M The car is stopped.
Answer: L
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8
This is a graph showing the distance travelled by a car during a period of time.
Write down the letter that corresponds to the description of the motion of this car during this time.
J The car is accelerating.
K The car is decelerating.
L The car is moving and travelling at a constant speed.
M The car is stopped.
Answer: J
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9
This is a graph showing the acceleration of an athlete in a road race.
Write down the letter that corresponds to the description of the motion of the athlete during this time.
J The athlete's acceleration is constant.
K The athlete's acceleration is increasing.
L The athlete is moving and travelling at a constant speed.
M The athlete is stopped.
Answer: M
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10
This is a graph showing the acceleration of an athlete in a road race during a period of time.
Write down the letter that corresponds to the description of the motion of the athlete during this time.
J The athlete's acceleration is decreasing.
K The athlete is running in the opposite direction.
L The athlete is moving and travelling at a constant speed.
M The athlete is stopped.
Answer: J
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Short answer questions
Marks
11
This is a graph showing the speed of a motorcycle during a period of time.
Write down the letter that corresponds to the description of the motion of the motorcycle during this time. If the motion changes, requiring you to use more than one letter to describe it, write both letters in the space provided.
J The motorcycle is accelerating.
K The motorcycle is decelerating.
L The motorcycle is moving and travelling at a constant speed.
M The motorcycle is stopped.
Answer: L then J
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12
This is a graph showing the speed of a motorcycle during a period of time.
Write down the letter that corresponds to the description of the motion of the motorcycle during this time. If the motion changes, requiring you to use more than one letter to describe it, put the letters in the right order in the space provided.
J The motorcycle is accelerating.
K The motorcycle is decelerating.
L The motorcycle is moving and travelling at a constant speed.
M The motorcycle is stopped.
Answer: J then L then K
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Long answer questions
Marks
What else can I help you with?
What is the answer to advice youd give to a frog?
Look before you leap.
What is advice that you would give to a frog?
Does he have a frog in his throat.
What advice do you give to a frog?
look for ill tell you the rest later
What Advice would you give a frog?
to kiss a princess and become a prince , well done froggy:)
What is some advice you would give to a frog?
to stay away from enameys LOL by the way that is a crazy question
Do you give an advice or do you give some advice?
Advice has no singular form; the closest is a 'piece of advice'. Proper usages include: give advice give some advice give a piece of advice
What advice would you tell a frog on game show?
"Ribbit!"
What is to give advice?
to give advice is to give a suggestion
Why was the frog angry in the poem the frog and the nightingale?
because the frog wants to get some food but the people won't give the frog some food.
Name something youd ride that might give you a sore butt?
rollercoaster , horse, toboggan, vibrator
How do you remove frog marks from walls?
YO, if you have frog marks on your wall then you have issues...but my advice would be to get a new wall and ditch the frogs...PROBLEM SOLVED
Can you give me a sentence using the word frog?
You must not let your frog jump on your teacher.
