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Physics!
Physics!
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physics, laws of motion
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
The third law states...
An object at rest will stay at rest
Forces are never applying to objects in space
A force acting on an object will move the object
For every action there is an equal and opposite reaction
2
What is the acceleration of gravity on Earth?
9.8m/s2
8.9km/hr
9.8N
8.9kg
3
What would be the reaction to you pushing your desk?
The desk pushing back on you
The desk moving backwards
The desk not moving
The desk moving forward
4
What is the correct formula for speed?
s=t/d
d=s/t
s=d/t
s=dt
5
Which of these is acceleration?
A bike resting on it's kick stand
A book siting on the desk
A car reving it's engine
A track star running around a track
6
What word can sum up the first law?
Action
Acceleration
Inertia
Force
7
The first law states...
A force acting on an object will move the object
F=ma
An object at rest will stay at rest
For every action there is an equal and opposite reaction
8
What is the measurement of inertia?
Gravity
Mass
Volume
Weight
9
If a 31 kg object has a 124N force applied to it, what will the acceleration be?
3844N
4N
4m/s2
0.25m/s2
10
The second law states...
An object at rest will stay at rest
A force acting on an object will move the object
For every action there is an equal and opposite reaction
Forces are never applying to objects in space
11
Safety bars on a roller coaster help you stay in place when the cart stops. Why?
Inertia of a moving object
Inertia of an object at rest
12
If you have an object that has a small mass & you apply a large force to it, what will happen?
Small acceleration
No Acceleration
Large acceleration
13
What is the speed of a 1300kg car that travels 150km in 3 hrs?
50km/hr
450km/hr
8.6km/hr
433km/hr
14
What is the name of the scientist that came up with the laws of motion?
John Locke
Benjamin Franklin
Isaac Newton
Dmitri Mendeleev
15
If an object has a mass of 5kg and is accelerating at 10 m/s
2
What is the force acting on it?
50kg
500kg
500N
50N
