CP2 forces & motion

QuizÂ by neil muir

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18 questions
• Q1
What is the gravitational field strength on our planet ?
5 N/ Kg
20N/kg
10 N / kg
15 N /Kg
30s
• Q2
What is the units for 'weight' ?
tonnes
newtons
grams
Kilograms
30s
• Q3
What is the equation for calculating weight ?
weight = mass
weight= mass - gravity strength
weight= mass + gravity strength
weight = mass x gravity strength
30s
• Q4
Calculate the weight of a 45 Kg dog ( remember how strong gravity is on our planet)
360 N
452 N
455 N
450 N
30s
• Q5
If the upthrust on the wings of a plane is 5000 N and the weight of the plane is 3000 N. What size is the resultant force and what is it's direction ?
2000 N upwards
2000 N downwards
8000 N upwards
2000 N downwards
30s
• Q6
What two distances make up the total stopping distance ?
braking distance + reaction time
braking distance + thinking distance
accelerating distance + braking time
looking distance + driving distance
30s
• Q7
What will happen if the driver of a car has been drinking ?
Thinking distance will increase
braking distance will decrease
Braking distance will increase
Thinking distance will decrease
30s
• Q8
What part of stopping distance will worn tyres affect ?
braking distance
reaction time
thinking distance
braking time
30s
• Q9
What is a typical reaction time of a human ?
0.35
0.25 seconds
0.5
0.1
30s
• Q10
What is the equation that links force, mass and acceleration ?
force = mass - acceleration
Force = mass x acceleration
acceleration = force x mass
mass = force x acceleration
30s
• Q11
What is the force needed to accelerate a mass of 6 Kg by 3 m/s2
18 N
1800 N
2 N
0.5 N
30s
• Q12
Name a factor that can affect a driver's reaction time .
type of tyres
speed of car
tiredness
30s
• Q13
How will a wet surface of a road affect the stopping distance of a car ?
thinking distance will increase
braking distance will decrease
reaction time will increase
braking distance will increase
30s
• Q14
What is meant by 'balanced forces ' ?
When opposite forces are a similar size
Forces that are the same size and act in opposite directions
Forces that balance objects
Forces that are the same size
45s
• Q15
What is the force needed to accelerate a mass of 500g by 2 m/s2 ?
1000 N
0.04 N
250 N
1 N
45s

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