WorksheetsS2 revision
Total questions: 22
Worksheet time: 18mins
W =m×g
A skydiver has a mass of 50 kg. Use the equation to calculate its weight.
5 kg
5 N
500 kg
500 N
What single force is acting on the skydiver in the exact moment she jumps off the plane?
weight
air resistance
gravity
upthrust
What force on the skydiver will significantly increase when she opens her parachute?
weight
air resistance
gravity
upthrust
Two forces of the same size and acting in opposite directions are said to be (a)
A car is accelerating. This means the forces acting on it are (a)
A car is moving at constant speed. Which of the following statement correctly describes the forces acting on the car?
There are no forces acting on the car
The forces on the car are balanced
The forces on the car are unbalanced
What is the resultant force?
10 N to the left
10 N to the right
0 N
5 N to the left
What is the resultant force?
18 N to the right
18 N to the left
4 N to the right
4 N to the left
Choose the correct words to fill in the gaps:
As a diver goes deeper down, the pressure of _____________ on him ________________; this is because the deeper he goes the _______________ water there is above him.
air; increases; more
water; decreases; more
water; increases; less
water; increases; more
What is A in this diagram?
reflected ray
incident ray
refracted ray
incoming ray
What is B in the diagram?
incident ray
reflected ray
normal
perpendicular
What is C in the diagram?
reflected ray
incident ray
refracted ray
normal
What is D in the diagram?
angle of incidence
angle of reflection
angle of refraction
incoming angle
What is E in the diagram?
angle of refraction
angle of incidence
outgoing angle
angle of reflection
What is the name of the effect on light as seen in the diagram above?
(a)
Complete the visible light spectrum:
red, orange, _____________ , ______________, blue, indigo, ____________
(a)
Choose the correct words to fill in the gaps:
We can see objects because they ________________ light. A blue umbrella looks blue because it reflects ____________ light and absorbs ______________ and _________________ light.
refract, blue, red, green
absorb, green, blue, red
reflect, blue, red, green
absorb, blue, red, green
The colour of an object depends on the colour of light it reflects.
White light is shining on a magenta flower.
What colours are being reflected from the flower?
(a)
White light is shining on a magenta flower. What colour is being absorbed by the flower?
(a)
The colour of an object depends on the colour of light it reflects.
Sunlight is shining on a white sheep.
What colours are being reflected from the sheep?
red
green
blue
none
The colour of an object depends on the colour of light it reflects.
Sunlight is shining on a white sheep.
What colours are being absorbed by the sheep?
red
green
blue
none
A green light is shining on a red flower.
What colour does the red flower look in the green light?
(a)
