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Forces Category
Density Category
Circuits
100
What is a force and what are its units?
What is A Push or a pull and newtons
100
What equation relates density, mass and volume?
Density = Mass/Volume
100
What are the units of Energy?
Joule
200
What are the 3 things a force can change about an object?
Shape?Speed?Direction
200
What are the units for density?
g/cm^3
200
What are the units of Power?
Watt
300
Friction is a ______. It acts _______to the direction of motion.
Friction is a FORCE. It acts OPPOSITE to the direction of motion.
300
What would happen if an object, that had a greater density than water, was placed in a pool of water?
It would sink
400
What is meant by “reaction time?”
Time taken to see a hazard and start to respond.
400
What do we mean by the word density??
The density of an object describes how much matter is in a fixed volume of space.
500
What is the difference between MASS and WEIGHT?
Mass is the amount of matter an object is made of and weight is a force and depends on gravity.
500
Why does oil float on top of water?
It is less dense