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Which of the following examples best demonstrates kinetic energy?
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
If an object travels 42 meters in 6 seconds, what is its average speed?
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
Which of the following sets of forces acting on an object will result in the object moving?
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
Which two measurements are needed in order to calculate the speed of an object in motion?
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
What motion will result from two forces acting on an object: one force of 50 Newtons to the east, the other a force of 30 Newtons to the west? The object will –
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
Investigating which of the following questions would involve kinetic energy?
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
A snowball sits at the top of the hill. Which of the following changes will increase the kinetic energy of the snowball?
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
5.A ball is rolling across a field with a force of 30 N. If the force of friction from the field is 9.7 N, what would be the net force of the ball?
A kite flying across the sky.
accelerate to the east.
7 m/s
What is the effect of a boat’s shape on its speed?
20.3
31 Newtons Left and 32 Newtons Right
Distance and time
The snowball is pushed and rolls down the hill, gaining speed.
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