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WorksheetsINERTIA
Total questions: 45
Worksheet time: 45mins
Inertia is a force
True
False
Inertia is a force that keeps stationary objects at rest and moving objects in motion at a constant velocity.
True
False
The law of inertia (Newton's first law) applies _____.
to moving objects only
only to objects that are not moving
to both moving and nonmoving objects
Inertia refers to _____
the tendency of moving objects to remain in motion
the force which keeps moving objects in motion with a constant velocity
the force that keeps stationary objects at rest
the tendency of stationary objects to remain at rest
A skateboard rolls down a hill, reaches the level surface and eventually comes to a stop. The fact that the skateboard ultimately stops is best explained by ____.
an unbalanced force would be required to keep the sled moving forward at constant speed
the presence of an unbalanced force (e.g., friction) can cause a moving object to stop
the presence of inertia causes it to stop
the natural tendency of any object is to ultimately stop
Inertia depends on ______
Velocity
Speed
Distance
Mass
All objects have inertia
True
False
Mac and Tosh are arguing in the cafeteria. Mac says that if he flings the jello with a greater speed it will have a greater inertia. Tosh argues that inertia does NOT depend upon speed, but rather upon mass. Who is correct?
Mac
Tosh
Neither
Both
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a(n) ____________________.
unbalanced force
inertia
mass
balanced force
A rightward-moving object would naturally and ultimately come to rest in the absence of forces. A rightward force is required to keep such an object moving rightward. Inertia is the general name given to that force.
True
False
More mass = More inertia
True
False
the tendency of an object to resist a change in its motion
acceleration
inertia
mass
frame of reference
Inertia is the tendency of an object to resist a change in its ___________.
temperature
shape
size
motion
Inertia is a force
True
False
Inertia is Newton's _______ Law of Motion.
First
Second
Third
What is the relationship between heavy objects and inertia?
Only heavy objects have inertia.
Heavy objects have more inertia.
Heavy objects have less inertia.
Heavy objects have no inertia.
Inertia tells us that we need ____________ to get an object moving or to make it stop.
a force
gravity
friction
strength
Diagram 3 shows a cat chasing a rat. The inertia of the cat is bigger than the rat because.
The size of the cat is bigger than the rat
The length of the cat is more than the rat
The mass of the cat is bigger than the rat
Which phenomenon shows the effect of Inertia?
Which of the objects listed below have the greatest inertia?
A 500 kg object that is not moving.
A 300 kg object that is not moving on the Moon.
A 250 kg object moving at 25 m/s.
A 700 kg object moving at 3 m/s.
Seat belt is needed for safety purpose in a vehicle. What is the use of the seat belt?
To increase the effect of inertia
To reduce the effect of inertia
To increase the effect of momentum
To decrease the effect of momentum
Which phenomenon shows the effect of inertia on a moving object?
A racing car can go faster than an ordinary car
An aeroplane can fly higher than a helicopter
A smaller car takes shorter time to stop the car completely compare to a lorry
Bigger effect on the small vehicle in an accident
Which of the following can reduce the effect of inertia in an accident?
Install a long car bumper
Install air bag
Drive a vehicle with a long crumple zones
Drive a higher car
Which explains why the tablecloth trick works?
The dishes are stuck in place due to air resistance.
The tablecloth is an ilusion.
The dishes have inertia, and therefore stay on the table.
magic
Which action increases the inertia?
Use a rougher card /
Use a smooth card /
Pull the card with greater force /
Change the coin to a heavier coin /
An object's inertia is effected by its mass.
Which has the MOST inertia?
Objects with greater _________ also have greater inertia.
speed
mass
force
friction
Which one has the LEAST inertia?
Inertia refers to ___________
(select all the apply)
the tendency of moving objects to remain in motion
the force which keeps moving objects in motion with a constant velocity
the force that keeps stationary objects at rest
the tendency of stationary objects to remain at rest
Which has the MOST inertia?
All objects have inertia
True
False
