Review of force and motion and Earth cyles for common assessment.
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what is the net force ?
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Question 17
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Question 19
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Question 22
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What is the force?
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Tides - Effects of the Moon on Earth
Each day, the ocean water rises and falls at different times. This movement of water is known as a tide. A tide is a change in water level at the shoreline. Tides are caused by the pull of gravity between Earth and the Moon and Earth and the Sun. During each 24-hour period, most beaches around the world will have two high and two low tides.
The Moon’s gravity has a powerful effect on Earths waters. In fact, it is far more powerful than the Suns because the Moon is closer to Earth than the Sun. The Moon pulls the water toward itself.
When the gravitational force of the Sun combines with the gravitational force from the moon it can increase a high tide by making it rise higher than normal. This will happen when the Moon is either in its new moon or full moon phase.
Each month most locations on earth experience 2 spring tides and 2 Neap tides.
Spring Tides: When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low.
Neap Tides: During First and last quarter the sun and moon work at right angles, causing the bulges to cancel each other.The result is a smaller difference between high and low tides and is known as a neap tide.
Neap tides are especially weak tides.
Question 40
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How many High tides occur each day?
Question 41
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How many low tides occur each day?
Question 42
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Question 43
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Question 45
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Question 46
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Question 47
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Question 48
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Question 50
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Question 51
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Question 52
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Why would it be really difficult to pedal a 10,000 pound bicycle?
A To accelerate a large mass requires a large force
B Large masses tend to spontaneously stop
C The reaction of the bicycle to force is unfavorable
D Lighter objects require larger forces to accelerate quicker
E It would not be difficult
Which vehicle has more inertia as they come to a stop?
Tractor Trailer
Mini Cooper
They have the same inertia
If you hit a wall with 100 N, what happens?
The Wall will not do anything
The Wall will hit back with 100 N
The Wall will move
The Wall will hit back with 50 N
Question 20
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Question 21
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Question 23
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What was the ball average speed during the time represented in the graph?
HINT; Divide rise/run
Distance/time
Question 24
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What was the average speed of the toy car during the two trials to the nearest tenth of m/s?
HINT: Add all distances add all times then divide distance /time. then round your number
Question 25
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Question 26
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What was the average speed in the first 40 seconds?
HINT; Divide rise/run Distance/time
Question 27
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Question 28
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Question 29
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A block is pulled 0.5 m to the right in 4.67 s.
What is the average speed to the nearest hundredth of m/s?
Hint: Remember the rules of rounding.
Question 30
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Which images shows first quarter?
Question 31
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Which image is full moon?
Question 32
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Which image is third quarter?
Question 33
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Question 34
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Question 35
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Question 36
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Question 37
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Question 38
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Question 39
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What causes the oceans tides?
The moon Gravity pulls Earth's water becasue It is closer to the Earth
The sun gravity Pulls Earth's water becasue it is much bigger
Earth rotation causes water level to change
When do spring tide occur?
During Waxing moons
During waning moons
During quarter moon
During new moon and full moon
When do Neap tide occur?
During Waxing moons
During waning moons
During quarter moons
During new moon and full moon
What will happen if the Earth's axis is not tilted? (Choose three answers )
Earth will have only summer
Earth will have long days and short nights
Earth will have exactly 12 hours of day and 12 hours of night
Earth day will be shorter
Earth will receive only direct sunlight
Earth will receive only indirect sunlight
Earth day will be longer
Match the month to the correct picture and three descriptions
In the Northern Hemisphere winter is occurring on the southern hemisphere summer is occurring
In the Northern Hemisphere Spring is occurring on the southern hemisphere fall is occurring
In the Northern Hemisphere summer is occurring on the southern hemisphere winter is occurring
In the Northern Hemisphere fall is occurring on the southern hemisphere spring is occurring
March
December
September
June
Match the month to the correct picture and three descriptions
The southern hemisphere has the warmest temperature and the sun is shining directly.
The sun is shining equally on the both hemispheres
Since the sun is shining directly on the northern hemisphere this hemisphere has the warmest temperature
The sun is shining equally on the both hemispheres
March
December
September
June
Match the month in the northern hemesphere with the correct picture
Item 1
Item 2
March
December
June
september
When the Earth is moving as represented by the image. What will result from this type of motion?
Days & nights
eclipses
seasons
What is incorrect about the image?
The Earth is rotating
The Earth is revolving around the sun
The sun is revolving around the Earth
The sun is rotating
What causes the Earth to experience days and nights?
revolution around the sun
rotation around the sun
revolution on its axis
rotation on its axis
What are the 2 reasons we have seasons?
Earth's rotation & revolution
Earth's tilt and rotation
Earth's tilt and revolution
direction of motion
left with constant speed
left with increasing speed
Right with constant speed
Right with increasing speed
These types of forces causes an object to accelerate
balanced force
unnbalanced force
These types of forces can cause and object to go faster
balanced force
unbalanced force
These types of forces can cause and object to change direction
balanced force
unbalanced force
These types of forces can cause and object to come to stop
balanced force
unbalanced unbalanced force
these type of force can cause and object to stay at rest
balanced force
unbalanced force
These type of force can cause an object to slow down
balanced force
unbalanced force
These type of force can cause and object to move at constant speed
balanced force
unbalanced force
These type of force result in a net force of zero newtons
balanced force
unbalanced force
check picture
balanced force
unbalanced force
check picture
balanced force
unbalanced force
check picture
balanced force
unbalanced force
check picture
balanced force
unbalanced force
check picture
balanced force
unbalanced force
check picture
balanced force
unbalanced force
A magician pulls out the tablecloth from under the dishes and they do not move.
A
B
C
D
If the cart’s wheel hits a large rock, causing the cart to suddenly stop. Which of the following is likely to happen as a result of Newton’s first law of motion?
F
G
H
J
Which cart will result in the greatest change in speed?
13.5 Kg cart
17.8 Kg cart
23.4 kg cart
9.78 kg cart
A bus travels 20 km in 30 min. What is the average speed of the bus?
HINT: change your units from minutes to hours by dividing time by 60. then calculate speed. S=d/t
20 Km/h
30 km/h
40 km/h
50 km/h
Based on the data in the table, which object experienced the greatest force?
HINT: use F=ma triangle; Calculate the force for each object
