Physical Science

What is the difference between a scientific theory and a scientific law?
A scientific laws( describe) A scientific theory (explains)
Scientic law ( explain ) Scentific theory ( describes
None of the above
Both A + B
Which of these is not a step of the scientific method?
form a hypothesis
Experimental
Velocity
Conclude
If your pencil is 11 cm long, how long is it in millimeters?
1.0 mm
.110mm
110mm
0mm
What type of variable is plotted on the x axis?
The independent variable
The dependent varible
1,2,3,4
0
What kind of graph would best show the results of a survey of 144 people, of which 75 ride a bus, 35 walk?
Bar graph
Pie chart
Plot graph
Statistics graph
The distance between an object and a reference point is the object's _____.
Displacement
Gravity
Inertia
Velocity
At 8:00 AM you leave home and walk 0.5 km to a friend's house. At 11:30 AM you return home, then travel by car to the mall, which is 10 km away, and arrive at 11:45 AM. What is the total distance traveled?
10.5km
11km
1.1km
100km
Earth's _____ causes projectiles to follow a curved path.
Centripial force
Force
Gravity
Inertia
_____ is the speed of an object at any instant of time
Instantaneous speed
Net force
Velocity
Generator
The direction and speed of an object is described by its _____.
Velocity
Gravity
Weight
Net Force
What is bills average speed ?
0.5km/m
0.3km/m
0km/m
10km.s.s

Runner

Distance covered (km)

Time (min)

Daisy

12.5

42

Jane

7.8

38

Bill

10.5

32

Joe

8.9

30

 

Runner

Distance covered (km)

Time (min)

Daisy

12.5

42

Jane

7.8

38

Bill

10.5

32

Joe

8.9

30

 

As you brake your bicycle, your velocity changes from 20 east m/s to 10 east m/s in 5 seconds. What is your acceleration
2m/ms in west ward
-2 m/s2 eastward
-10m/s2
2m/s2 eastward
Which best describes why projectiles move in a curved path?
Horizontal velocity is constant. Vertical velocity is changing due to gravity.
No gravitional pull
False
Centripital Force
_____ measures an object's tendency to resist changing its motion.
Resitance
Inertia
Force
Net force
In which direction is centripetal force?
Left/Right
Bilateral
Middle
Towards center
Which of the following is a force?
Friction
Velocity
Gravity/weight
Inertia
____ relates the net force exerted on an object to its mass and acceleration.
Newtons Second Law a= Fnet/mass
Newtons 1 Law of motion
S=d/t
Newtons 3rd law
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