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Course: Alhussan Physics — Stage 7
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Alhussan Physics — Stage 7

Chapter 1: Energy

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Chapter 2: Forces

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Chapter 3: Sound

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Chapter 4: Electricity

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Chapter 5: The Earth in Space

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Quiz

Physics 2.6 Round in circles — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
The force for circular motion acts towards the ____.
outside
front
centre
back
2.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
3.
True or false? Centripetal force acts outwards.
True
False
4.
Satellites by orbit type (%). What is the value for Medium?
Dr Dabour Hub Academy - figure 2
14
15
59
6
5.
Tension needed to swing a ball faster. Calculate the percentage change in "Tension (N)" from 1 to 4.
Dr Dabour Hub Academy - figure 3
1500%
−1500%
94%
1600%
6.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
7.
Jupiter's period is 11.9 years. How many Earth years for 5 orbits?
2.4 years
59.5 years
5.0 years
16.9 years
8.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 5
A
B
C
D
9.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
10.
Which term matches this definition? “Curved path around a planet or star.”
Force arrow
Teardrop shape
Orbit
Gravitational field strength
11.
Which is the correct definition of “Gravity”?
Force keeping planets in orbit.
Orbit matching Earth's rotation.
Quantity with size and direction.
Space with no air.
12.
Which statement is NOT correct?
The Moon takes about 27 days to orbit Earth.
A hammer thrower lets go and the hammer flies off at a tangent.
If the string breaks the ball moves in a straight line.
Constant speed means no force.
13.
True or false? Without gravity planets would move in straight lines.
True
False
14.
Friction between tyres and road lets a car go round a ____.
tunnel
bridge
bend
hill
15.
Which statement is correct?
If the string breaks the ball keeps circling.
Earth orbits the Sun in a day.
The ISS orbits about every 90 minutes.
The Moon orbits the Sun directly.
16.
Tension needed to swing a ball faster. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
17.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
18.
Which term matches this definition? “A force directed towards the centre of a circle that keeps an object moving in a circle.”
Drag
Friction only
Centripetal force
Upthrust
19.
Tension needed to swing a ball faster. What is the value of "Tension (N)" when "Speed (m/s)" is 2?
Dr Dabour Hub Academy - figure 9
8.0
0.5
4.5
2.0
20.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 10
A
B
C
D
21.
A force acting in the direction of motion:
Makes it turn
Has no effect
Speeds the object up
Makes it go in a circle
22.
Tension is 0.5 N at 2 m/s and ∝ v². Tension at 3 m/s?
1.0 N
0.5 N
1.1 N
0.8 N
23.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
24.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
25.
Tension needed to swing a ball faster. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 13
"Tension (N)" increases as "Speed (m/s)" increases
"Tension (N)" rises to a peak at 4, then falls
"Tension (N)" decreases as "Speed (m/s)" increases
"Tension (N)" stays the same
26.
Which statement is correct?
Orbits are perfect squares.
A force at right angles speeds an object up.
Outer planets orbit faster.
A ball on a string moves in a circle due to tension.
27.
True or false? Orbits are perfect squares.
True
False
28.
Orbital speed against distance from Sun. Calculate the percentage change in "Speed (km/s)" from 58 to 778.
Dr Dabour Hub Academy - figure 14
−269%
−73%
27%
73%
29.
True or false? Geostationary satellites take 24 hours per orbit.
True
False
30.
Planetary orbits are slightly ____.
square
elliptical
random
zigzag
31.
Jupiter's period is 11.9 years. How many Earth years for 3 orbits?
35.7 years
4.0 years
3.0 years
14.9 years
32.
Tension is 0.5 N at 1 m/s and ∝ v². Tension at 3 m/s?
1.5 N
4.5 N
1.0 N
0.5 N
33.
Orbital speed 30 km/s. Distance in 60 s?
90 km
18,000 km
2 km
1800 km
34.
Which is the correct definition of “Geostationary orbit”?
Greek thinker who said heavy objects fall faster.
Quantity with size and direction.
Shaped to reduce drag.
Orbit matching Earth's rotation.
35.
Tension is 2 N at 1 m/s and ∝ v². Tension at 3 m/s?
6.0 N
4.0 N
18.0 N
2.0 N
36.
Orbital speed against distance from Sun. By how much does "Speed (km/s)" change between 58 and 778?
Dr Dabour Hub Academy - figure 15
44
61
35
13
37.
Earth takes ____ to orbit the Sun.
one hour
one month
one year
one day
38.
Orbital speed 30 km/s. Distance in 3600 s?
1,080,000 km
108,000 km
3630 km
120 km
39.
Without gravity planets would move in ____.
straight lines
circles
figure eights
spirals
40.
Orbital speed against distance from Sun. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 16
"Speed (km/s)" decreases as "Distance (million km)" increases
"Speed (km/s)" stays the same
"Speed (km/s)" rises to a peak at 58, then falls
"Speed (km/s)" increases as "Distance (million km)" increases
41.
Which statement is NOT correct?
Outer planets orbit faster.
Geostationary satellites take 24 hours per orbit.
Speed can stay constant while direction changes.
Planetary orbits are slightly elliptical.
42.
True or false? A trolley pushed from behind moves in a straight line.
True
False
43.
A force can change shape, speed or ____.
direction
atoms
mass
colour
44.
The ISS orbits every 96 min. Orbits per day?
15.0
2304.0
0.1
0.2
45.
Satellites orbit Earth because of ____.
light
magnetism
air resistance
gravity
46.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 17
A
B
C
D
47.
True or false? A force at right angles speeds an object up.
True
False
48.
Satellites by orbit type (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 18
A
B
C
D
49.
True or false? Earth orbits the Sun in a day.
True
False
50.
The ISS orbits about every ____ minutes.
24
90
365
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Part of Chapter 2: Forces — see every lesson and quiz in this unit.
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