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WorksheetsTest - Chapter 4: Linear Motion (11/9)
Total questions: 38
Worksheet time: 2hrs 1mins
The picture above shown 4 diagram of different motion. Which motion has constant velocity?
a
b
c
d
A car accelerates uniformly from 5 m/s to 13 m/s in 4.0 s. What is the acceleration of the car?
0.80 s2m
1.25 s2m
2.00 s2m
When one object is travelling with a constant velocity, its acceleration will be
(a)
A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?
4.29 m/s3
4.29 m/s2
4.29 m/s1
4.29 m/s
Acceleration only takes place when things speed up.
True
False
The tendency of an object to resist a change in motion
acceleration
inertia
speed
velocity
The distance an object travels in a certain time
acceleration
inertia
speed
velocity
The rate at which an object's velocity changes
acceleration
inertia
speed
velocity
A heavy ball and a light ball are rolling at the same speed on the same surface. Why will the heavy ball be harder to stop?
It has greater velocity
It has greater inertia
It experiences greater friction
It has greater acceleration
A car is stopped at a red light. The light turns green and the car starts accelerating 10 km/hr every second. What will it's speed be at the end of three seconds?
3 km/hr
13 km/hr
30 km/hr
300 km/hr
A train is traveling on a curved track at a constant speed. Why is the train accelerating?
The train travels faster around a curved track
The direction of the train is constantly changing
The train's size will eventually slow it down
The clockwise direction of the train is constant
What does the solid line on this graph represent?
(a)
What is this line of this graph showing?
moving away from starting point at a constant speed
moving back towards the starting point at a constant speed
acceleration (getting faster)
deceleration (getting slower)
What is represented by this graph?
constant speed
not moving
speed increasing
speed increasing at a constant rate
What is happening at E?
Stationary
Accelerating
Constant speed; moving away from the starting position
Constant speed; returning to start position
This graph demonstrates an object that is -
(a)
A skydiver jumps out of a plane and is falling towards the Earth before she opens her parachute.
She is in free fall because nothing is holding her up.
She is in free fall because gravity is pulling her down.
She is not in free fall because skydiving is an expensive hobby.
She is not in free fall because gravity is not the only force she is experiencing.
Using g = -10 m/s2:
A ball is dropped from a certain height toward the ground. What will its velocity be after 3 seconds?
30 m/s
10 m/s
0 m/s
-20 m/s
-50 m/s
When an object falls in physics world, what happens? (Assume no air resistance.)
It accelerates at a constant rate until it hits the ground
It accelerates at a non-constant rate until it hits the ground
It accelerates at a constant rate until it reaches terminal velocity
It accelerates at a non-constant rate until it reaches terminal velocity
What is the speed of a bobsled whose distance-time graph indicates that it traveled 100m in 25s
(a)
An object that is accelerating may be ... (more than one answer.)
slowing down
changing direction
gaining speed
none of the above
In a normal environment, why does a bowling ball and feather hit the ground at different times when dropped from the same height?
They don't; they hit the ground at the same time.
One is more dense than the other.
One is heavier than the other.
Air resistance
The first space tourist sneaks his pet gerbil up onto the International Space Station and lets the little guy float around.
The gerbil is in free fall because the only force acting on it is gravity.
The gerbil is in free fall because it's floating around and not touching anything.
The gerbil is not in free fall because it's in orbit and not falling towards the Earth.
The gerbil is not in free fall because even though it's owner didn't pay it's way, space tourism is still an expensive hobby.
Using g = -10 m/s2:
A ball is dropped from the top of a bridge that is 200 m above a lake. How many seconds does it take to get to the water?
2.0 s
4.6 s
6.3 s
8.19 s
Nik Nazim is standing on the top observation deck of the Eiffel Tower in Paris at a height of 300 meters. He drops his cell phone. How fast will the phone be traveling when it hits the ground? Ignore the effect of air resistance.
10.0 m/s
77.5 m/s
149.76 m/s
38.75 m/s
Using g = 10 m/s2.
An 'Electrode' Pokemon is dropped from the top of a roof with a speed of 25 m/s toward Ash's head. After 2 s, its new velocity will be:
19.6 m/s
5.4 m/s
44.6 m/s
45 m/s
Using g = 10 m/s2.
A free falling object falls for 2.4 s. What is its max distance that it fell?
(a)
