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Physics - speed, acceleration, Newton's laws Flashcards | StudBud
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Physics - speed, acceleration, Newton's laws
Physics - speed, acceleration, Newton's laws
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Speed, acceleration, Newton's laws
Flashcards
24 cards
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Questions
24
Answers
1
A speed time graph can be used to determine
All of the above
Acceleration
How far an object has travelled
The time taken for an object to move a certain distance
2
Why would you need to control variables in an experiment?
To measure effect of varying ONLY the independent variable
To measure effect of varying ONLY the dependent variable
To save money
To save time
3
If you went to the moon, would your weight there be:
Approximately one-sixth of your weight on earth?
Zero?
Approximately six times your weight on earth?
The same as your weight on earth?
4
On a speed-time graph, a
horizontal
line indicates:
Zero displacement
Zero speed
Constant acceleration
Constant speed
5
The gravitational constant 'g' (9.8m/s
2
) is
force
acceleration
gravity
speed
6
Newton's second law explains the relationship between force, mass and....
Speed
Gravity
Inertia
Acceleration
7
When there is no change in direction
Velocity is greater than speed
Velocity is the same as speed
Velocity is less than speed
Velocity = acceleration
8
When you stand on a set of scales, the number shown is actually
Your mass
Your weight
Your thrust
Your force
9
Net force is
Weight
Thrust
The weight of a net
The total force acting on an object
10
The reaction to your weight force when you sit on a chair is...
The chair pushing up on you
Friction between you and the chair
Gravity pushing you down
Your inertia
11
Newton's third law states that for every action there is..
An equal and opposite reaction
An acceleration
A motion
A consequence
12
Velocity is:
Similar to speed but with a direction
The same as acceleration
Time/distance
The same as speed
13
In physics, speed is:
Of the essence
Distance travelled
Distance travelled in a given time
Time taken to travel a certain distance
14
If the dots on the ticker tape get further apart, the object attached to the ticker timer is...
Speeding up
Slowing down
Staying at the same speed
Bouncing
15
Discontinuous
data is best plotted on a
Bar graph so data can be separated into categories
Bar graph because it is easier
Line graph because it looks nicer
Line graph because it is more accurate
16
In an experiment measuring speed of a car loaded with weights, which variable is
discontinuous
?
The length of the string
The time taken to travel the distance
The speed of the car
The number of weights in the car
17
IN PHYSICS, force is
A push or a pull on an object
What gives a Jedi power
The same as acceleration
A group of soldiers
18
Which variable(s) must you
control
to accurately measure impact of car mass on acceleration?
Everything except the weights on the car
Just the length of string
The time
The type of car
19
Newton's first law is also know as the law of....
Motion
Acceleration
Inertia
Unbalanced forces
20
Acceleration is a measure of
How much force is applied to an object
How quickly an object's speed changes
None of the above
How fast an object is moving
21
If there is no gravitational force, a body can have zero:
Weight
Molecules
Volume
Mass
22
IN PHYSICS, gravity
Is something very serious
Pulls objects towards the centre of the earth
Is the same as weight
Makes things go up
23
IN PHYSICS, inertia is...
slowness
a measure of mass
acceleration
the tendency of an object to resist changes in motion
24
Deceleration is
A made-up word
The same as acceleration
A decrease in speed
Going backwards
