WorksheetsPhysical Science Final Review
Total questions: 60
Worksheet time: 2hrs 0mins
If a cyclist travels 60km in 2 hours, her average speed is
20 km/h
30 km/h
15 km/h
2 km/h
If speed of an stays the same, the object is traveling at
average speed
increasing speed
constant speed
decreasing speed
A semi is driving in the same direction at a constant speed for 20 minutes, which of the following is true
the semi accelerated
the semi decelerated
the semi's speed and average speed were equal during the 20 minutes
You made a graph of the motion of a rolling ball. The slant/slope depends on
how quickly or slowly the ball is moving
the direction the ball is rolling
when the ball began moving
how far the ball moved
What does the horizontal line represent on a distance-time graph
object that is decreasing speed
object that is increasing speed
object that is not moving at all
object moving at a constant speed
If you know the speed and direction of a trains motion, which of the following do you know
distance traveled
velocity
acceleration
average speed
The SI unit for length is
mile
feet
inch
meter
The rate at which velocity changes
acceleration
direction
speed
motion
The moon is accelerating because
it constantly changes speed
its shape
continuously changes direction
In 200 years a plate that moves 10 cm/yr will travel
20 kilometers
20 centimeters
2 kilometers
20 meters
On an acceleration graph showing speed vs time, a straight line shows the acceleration is
changing
increasing
decreasing
constant
As mass of an object increases, the inertia will also increase
True
False
You can increase acceleration by decreasing mass
True
False
Which of the following would decrease the amount of friction
putting sand on driveway
oiling a squeaky door
carpeting a wood floor
waxing skis
How do you calculate two forces acting in same direction
add them together
find the sum and divide by 2
they cancel each other out
When in flight, airplanes experience which type of friction
rolling
fluid
sliding
static
Our mass on Earth is a result of gravity?
True
False
Our weight on the moon would be 1/6 of weight on earth due to gravity
True
false
according to the graph how long does it take the object to travel 4km?
6 hour
2 hours
3 hours
4 hours
Calculate the objects speed
1 km/h
2 km/h
4 km/h
10 km/h
What does the horizontal section of the red line represent?
the object stopped moving
the object is speeding up
the object is slowing down
the object changes direction
A bus traveling 30 m/s speeds up to 45 m/s in 15 seconds. The average acceleration is
1 meter/second
1 meter/second/second
cannot be calculated
A runner finishes a 120 km race in 2 hours, the average speed is
240 km/h
60 km/h
30 km/h
The trunk of a tree is 25 cm thick. Each year it gets thicker by .5 cm. How thick will the trunk be in 40 years?
40 cm
50 cm
65 cm
45 cm
A 10 kg ball is accelerated 500 m/s2 by a force of
500 N
50 N
5000 N
1/50 N
A van accelerates from 0 Km/hr to 60 km/hr in 6 seconds. What is the vans acceleration?
10 km/hr/hr
10 km/hr/s
10 km/hr
What does the line segment from 0-4 represent?
the object rolling up a ramp
slowing down
constant speed
constant acceleration
What is the acceleration of the object between 0 and 4 seconds?
1 m/s2
2 m/s2
8 m/s2
8 m/s
What happened to the speed of the object during the final 4 seconds?
remained constant
stopped
decelerated
How far did the object move in the final 4 seconds?
8 m
4 m
32 m
16 m
All of the following are forces except
friction
momentum
gravity
weight
Newton's first law of motion is sometimes called the law of
conservation
inertia
momentum
resistance
Acceleration of a 1400 kg car acted on by a net force of 250 N is?
.18 m/s2
5.6 m/s2
1150 m/s2
Which of the following is a unit of work?
watt
joule
horsepower
newton
If a machine has a mechanical advantage much larger than 1, its output force is
in the same direction as input force
about the same as input force
much less than input force
much larger than input force
all of the following are examples of simple machines except
lever
wedge
screw
fulcrum
The tool used to measure heat produced from a chemical reaction
thermometer
calorimeter
kelvin scale
Temperature is related to the average kinetic energy of the particle in that object
True
False
Which property of an object is related to the average kinetic energy of the particles in that object
specfic heat
temperature
mass
conductivity
Most of the suns energy reaches Earth by ratiation
true
false
Which of the following would be the best conductor of heat
glass
wood
plastic
metal
Gravitational potential energy of an object near the moons surface is less than gravitational potential energy near the Earths surface
True
False
The moons acceleration due to gravity is more than Earth's
True
False
Solar cells convert electromagnetic energy into electrical energy
True
False
If skater A pushes skater B, why does A move?
skater A is on incline
skater A won't move
Skater B is pushing back on skater A
If skater B is now holding a heavy object and skater A pushes same as she did first time, how will skater A's motion change
it will be same as last time
skater A will move faster, skater B slower
both skaters will move faster
skater A will move the same and B will move slower
Calculate the weight of an object that has a mass of 3.6 kg.
35.3 N
35.3 kg
35.3 lbs
3.5 N
All of the following are examples of work being done except
climbing stairs
pushing a cart
lifting a book
none of the above
Calculate the mechanical advantage of a crowbar that you apply a 25 N force to lift a box with a weight of 350 N.
11
8750
14
0.07
calculate the Kinetic energy of a 40 kg canoe floating downriver at a speed of 2 m/s
160 J
80 J
20 J
An object in a car hits the dash when you slam on the breaks due to
friction
centripital force
balanced forces acting on object
inertia
A parachute slows the falling of a skydiver by
decreasing the weight of person
reducing fluid friction
increasing terminal velocity
increasing surface area
As you slide an object across the floor, the sliding friction acting on the object
acts in the same direction of motion
equals the weight of object
greater than static friction
acts in opposite direction of motion
The gravitational force between two objects increases as mass or distance increases
True
False
A passenger in the rear seat of a car moving at a steady speed is at rest relative to
the wheels on the car
front seat
pedestrian outside
speed measured at a particular instant is average speed
true
false
All of the following are examples of acceleration except
merry go round
a car gaining speed
a train running at a constant speed
a truck slowing down
A graph shows an object moving 100 m in 2 seconds and then remains at rest for 2 seconds. What is the average speed
50 m/s
20 m/s
25 m/s
A machine is used to lift boxes in a warehouse. Which will increase the power of the machine?
decreasing the distance boxes are moved
decreasing the force exerted by machine
decreasing the time it takes to lift the boxes
decreasing work done by machine
Transverse and longitudinal waves both
have compressions and rarefactions
transfer energy through a medium
move at right angles to the vibration of the medium
are capable of moving the medium a long distance
