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Raul wants to investigate how the angle of a ramp affects the speed of an object rolling down the ramp. He can conduct his investigation in a number of different ways. Which investigation should he perform?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
Which description here characterizes an experiment?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
Two students conduct the same experiment, but they get different results. What should the students do next?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
In chemistry, scientists classify some substances as bases. The following are all characteristics of bases. Which observation can you make about a base using the senses alone?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
On the following list, which procedure would not be included as part of a valid scientific experiment?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
Hillary is dropping objects that are the same volume. She wants to investigate how an object’s mass affects the average speed at which it travels when dropped, until it hits the ground. Which variable must Hillary change during the experiment?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
Which of the following is NOT a true statement about any hypothesis?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
Which of the following is a true statement about any hypothesis?
The students should check their procedure and tools for sources of error.
conducting of an organized procedure to study something under controlled conditions
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
It must communicate the conclusions of the experiment.
feels slippery to the touch
the mass of the object
uncontrolled variables
It must be testable using an investigation.
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