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

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

Physical Science

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