The pulling force that always acts along the direction of the rope in a pulley system is called ____________________.
Tension
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15
The motion of an object will continue in the same direction at the same speed unless the object is acted upon by a(n) ____________________.
unbalanced force
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15
The metric unit of mass, distance and time preferred by scientists are the:
kilogram, meter, second
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15
Speed with a direction is called ______________________.
velocity
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15
The slope of a speed versus time graph represents the...
acceleration
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15
The Newton is defined as the force of that can give a ______kg object an acceleration of ________ m/s/s,
1
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15
How fast is a freely falling object going when it falls for 9 seconds?
90 m/s
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boom
Lose 50 points!
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gift
Win 25 points!
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fairy
Take points!
5
10
15
20
25
banana
Go to last place!
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15
The slope of a distance time graph is the ____________.
average speed
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15
Emma walks to school at a speed of 3 miles per hour. If it takes her 20 minutes to walk from home to school, how many miles away is the school from her house?
1 mile
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15
What does the gradient mean on a distance time graph?
Speed
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15
Terminal speed occurs when:
force of gravity (weight) = air resistance up
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monster
Reset all scores!
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magnet
Take 15 points!
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gift
Win 20 points!
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lifesaver
Give 20 points!
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15
If you exert the same force on Earth that Earth exerts on you, why doesn’t Earth move up to meet you when you jump off its surface?
it has too much mass
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seesaw
Swap points!
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shark
Other team loses 20 points!
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shark
Other team loses 10 points!
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baam
Lose 5 points!
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15
A 60-kg person on in-line skates pushes against a wall with a force of 30 N and recoils. What acceleration does that person experience?
