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P05 EOTT - Moving by force

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Last updated 1 day ago
36 questions
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Question 20
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A car has two forces acting on it:

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A plane is flying through the air at a high speed.

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A student measures the time it takes a metal ball to fall through 50 cm of fluid.

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Which of the following sets of equipment would be most useful for measuring the average speed of a slow moving object:
light gates
light gates and stop watch
measuring tape and stop watch
measuring tape only
Which of the following sets of equipment would be most useful for measuring the instantaneous speed of a fast moving object:
measuring tape only
measuring tape and stop watch
light gates
light gates and stop watch
Describe the motion of an object that is at equilibrium?
Moving at a steady speed or stationary
accelerating fast
accelerating slowly
moving forwards
Which of the following objects is not at "equilibrium"?
an object that is moving at 100 mph
an object that is moving at 10 mph
an object that is not moving
an object that is slowing down
Which of the following statements describes an object that has positive acceleration:
the object moves a small distance every second
the object moves a large distance ever second
the object moves less and less distance every second
the object moves more and more distance every second
Which of the following statements describes an object that has negative acceleration (deceleration):
the object moves less and less distance every second
the object moves a large distance every second
the object moves a small distance every second
the object moves more and more distance every second
How does a distance-time graph (D-T graph) show the distance of an object from its starting point
the height of the graph
How straight of curved the line on the graph is
the slope (gradient) of the line
How long the line on the graph is
How does a distance-time graph (D-T graph) show the speed of an object
the height of the graph
How straight of curved the line on the graph is
the slope (gradient) of the line
How long the line on the graph is
How does a distance-time graph (D-T graph) show if an object is stationary
the line on the graph slopes upwards but is curved
the line on the graph slopes downwards but is straight
the line on the graph slopes upwards but is straight
the line on the graph is flat (horizontal)
How does a distance-time graph (D-T graph) show if an object is moving towards its starting point
the line on the graph slopes downwards
the line on the graph is curved
the line on the graph slopes upwards
the line on the graph is flat
What is a fluid?
a liquid or a gas
a gas only
a liquid only
anything made of particles
What force do fluids exert on a moving object?
friction
drag
weight
resistance
Why do liquids produce more drag than gases?
liquid particles have more force
liquid particles are closer together
liquid particles are heavier
liquid particles have more energy
What is relative motion?
how fast a group of objects moves
The speed of an object
how fast an object appears to move when looked at from a different moving object
how fast a member of your family moves
How do we calculate the relative motion of two objects moving in opposite directions?
fastest speed + slowest speed
fastest speed x slowest speed
fastest speed - slowest speed
fastest speed / slowest speed
What is the correct equation for speed?
speed = distance x time.
speed = distance ÷ time
speed = time ÷ distance
speed = time + distance
What is acceleration?
How quickly an objects speed changes
How fast one object overtakes another
How quickly an object leaves the start of a race
The fastest speed of an object
What is the graph showing?

an object accelerating.
an object increasing its speed
an object moving towards its starting point.
an object moving away from its staring point
What is the graph showing?

accelerating
moving at 5m/s
moving at constant speed
stationary
How does a resultant force change an objects motion?
Causes it to accelerate
Move at a fast speed
Move at a constant speed
Move at a low speed
Speed is a measure of how far an object has moved in a particular time.

Question 21
21.

Use the equation speed = distance ÷ time to calculate the speeds of the objects i to vi in the table.

Question 22
22.

Object A takes longer to travel the same distance than object B.
Does object A have a higher or lower speed?

Question 23
23.

Object A travels a larger distance than object B in the same amount of time.
Does object A have a higher or lower speed?

Question 24
24.

Describe the difference between average and instantaneous speed?

Devontae was running in the playground and made a distance time graph of his journey.

Question 25
25.

How far does Devontae move in the first 4 seconds?

Question 26
26.

What is happening to Devontae’s motion between 4-6 seconds?

Question 27
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Question 28
28.

Describe Devontae's motion between 12 and 20 seconds.
Include whether he is moving away from, or towards his starting point.

Question 29
29.

What is the resultant force on the car?

Question 30
30.

Describe how the distance – time graph shows the car is accelerating.

Question 31
31.

What force will be pushing back against the plane as it moves forwards.

Question 32
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What will happen to the size of the force pushing back if the plane starts moving faster?

Question 33
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Explain why the force pushing the plane back will change if it starts moving faster.

Question 34
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Question 35
35.

Calculate the average time taken for the ball to fall 50 cm.

Question 36
36.

Explain why the student took repeat readings and calculated an average.

Is Devontae moving faster between 0-4 seconds or between 6-12 seconds?
between 0-4 seconds
between 6-12 seconds
The student measured a value that was slightly different each time. What sort of error is causing these small unpredictable differences?
anomalies error
random error
repeating error
systemic error