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3U Physics: Introduction to Forces Flashcards | StudBud
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3U Physics: Introduction to Forces
3U Physics: Introduction to Forces
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Defining force and understanding Newton's Laws. #physics #newtonslaws #forces
Flashcards
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Questions
15
Answers
1
The fact that friction allows a person to walk on a sidewalk illustrates Newton's ___ Law
3rd
1st
4th
2nd
2
Calculate the net force a canon applies to a 5.0 kg shell that accelerates at 5.0 x 10^3 m/s^2.
1.0 N
2.5 x 10^4 N
2.5 N
1.0 x 10^3 N
3
Which of the following objects would have the greatest inertia?
Train
Car
Stroller
Ant
4
Which of Newton's Laws best describes the event in this image?
2nd
4th
3rd
1st
5
The forces shown in this picture are best described by Newton's ___ Law.
3rd
4th
1st
2nd
6
A force can simply be defined as ...
push
push or pull
the dark side
pull
7
Which of Newton's Laws best describes the event in this image?
4th
3rd
1st
2nd
8
What is happening to speed?
Slowing down.
Comstant speed.
Speeding up.
9
For every action there is an equal and opposite reaction. This is know as Newton's ____ Law.
3rd
2nd
1st
4th
10
Which of Newton's Laws best explains the event in this image?
1st
4th
3rd
2nd
11
What is happening to the speed?
and
What is the normal force?
Slowing down, and 550 N
Slowing down, and 50 N
Speeding up, and 50 N
Speeding up, and 550 N
12
What is the net force?
AND
What is happening to speed?
10 N [forward] and slowing down
10 N [backward] and slowing down
10 N [forward] and speeding up
10 N [backward] and speeding up
13
In which direction is the acceleration?
Neither
Up
Down
14
If the net force on an object is zero, what is happening to the object?
Accelerating.
At a constant speed.
At rest.
At rest, or at constant speed.
15
Newton's second law states that an _________________ force causes a mass to accelerate.
unbalanced
net
all of the above
outside
