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Physic Sec 1 & 2 Test Flashcards | StudBud
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Physic Sec 1 & 2 Test
Physic Sec 1 & 2 Test
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Review for Physics unit on motion, force and Newton's laws.
Flashcards
19 cards
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Practice quiz
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Questions
19
Answers
1
From Iowa you travel south to Texas, in 1 hour you traveled 80 km. Your velocity is
80 km/hr
80 km
80:1
80 km/h south
2
Parachutes slow things to a safer velocity because they affect air resistance how
decrease gravity
increase gravity
decrease resistance
increase resistance
3
Gravity affects an object's
density
mass
weight
volume
4
A force
can cause an object to speed up, slow down
is a push or pull
is expressed in newtons
All of the above
5
Three balls,different materials dropped at same time with no air resistance which lands first?
a tennis ball
a steel ball
land same time
a solid rubber ball
6
All objects accelerate on Earth at 9.8 m/s/s, for every second the object will
increase by 9.8
stay the same
none of these
decrease by 9.8
7
Rolling friction
is usually less than sliding friction
is usually greater than sliding friction
makes it difficult to move objects on wheels
is the same as fluid friction
8
How does friction occur?
Hills & valleys of 2 touching surfaces
hills and valleys
two touching surface
rub them
9
The distance traveled divided by the time in a specific direction is an object's
acceleration
velocity
weight
force
10
Acceleration is a change in
direction
velocity
speed
all of the answers
11
What tool is used to demonstrate Newton's 3rd law of motion?
graduated cylinder
triple beam balance
Newton's cradle
spring scale
12
Newton 1st law, a moving object will
come to a stop
accelerate
remain in motion
transfer energy
13
What is the net force: 7 N north and 5 N south
2 n north
12 n north
2 n south
12 n south
14
One way to compare the densities of oil & water is to make a density column and observe
separates into layers
evaporates quickly
creates an odor
change color
15
A napkin will stay on a picnic table because of
rolling friction
static friction
sliding friction
fluid friction
16
The force of gravity is greater between two objects that
have greater masses
are moving at greater speed.
are farther apart.
have rougher surfaces
17
To measure the volume of water read what part of the meniscus?
none of these
lowest
highest
outer
18
A balanced force means there is
spinning
no motion
none of the above
motion
19
You're in a car with a bunch of friends, the car runs out of gas, why is it hard to move
mass
inertia and mass
volume
inertia
