WorksheetsSafety S1-4 Test Review
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
force per unit area
a)
force
b)
pressure
c)
inertia
2.
type of neck injury caused by rear-end collisions
a)
whiplash
b)
pressure
c)
inertia
3.
When work is done on an object, what is the effect on its kinetic energy
a)
decreases
b)
increases
c)
either increase or decrease
d)
no effect
4.
unit for kinetic energy
a)
joule
b)
newton
c)
meter
d)
pascal
5.
unit for work
a)
joule
b)
newton
c)
meter
d)
pascal
6.
change in kinetic energy
a)
inertia
b)
mass
c)
force
d)
work
7.
a force applied over a certain distance
a)
force
b)
work
c)
inertia
d)
mass
8.
formula for work
a)
force/distance
b)
distance/force
c)
force x distance
d)
force + distance
9.
Kinetic energy depends on the mass and velocity of an object
a)
True
b)
False
10.
Vehicle hits an object and comes to rest
a)
first collision
b)
second collision
c)
third collision
11.
The brain and organs are stopped by the body cavity
a)
first collision
b)
second collision
c)
third collision
12.
Driver keeps moving until stopped by the interior of the car
a)
first collision
b)
second collision
c)
third collision
13.
A dull knife does not cut as well as a sharp knife when pushed equally hard. A sharp knife cuts better because
a)
it requires more energy
b)
continues in motion with constant speed
c)
has a longer edge
d)
exerts greater pressure
14.
An automobile traveling at a speed of 5 m/s brakes to a stop at a distance of 2 m. What distance would be reuired by the same braking force to stope the automobile at a speed of 20 m/s?
a)
8m
b)
16m
c)
24m
d)
32m
15.
Which object has the greatest inertia
a)
5-kg ball moving at 7 m/s
b)
0.4-kg bird flying at 30 m/s
c)
20-kg wheelbarrow moving at 2 m/s
d)
0.3-kg baseball hit at 60 m/s
100 %
