click below
click below
Normal Size Small Size show me how
3B test
Question | Answer |
---|---|
A force that acts in the opposite direction of the downward pull of gravity is | air resistance. |
In space, if an astronaut pushed her jetpack away from her, the jetpack would | push back. |
What are the 3 types of motion? | circular, vibrational, straight line |
Compared to distance, displacement is always what? | shorter or equal to |
What are 3 examples of static charges? | clothes sticking from dryer, shocking from walking across carpet, rubbed balloon sticking to hair |
The force of attraction between any 2 objects is what? | gravity |
The moon uis kept in orbit around the Earth by what force? | Earth's gravity |
According to the law of inertia, an object at rest does what? | stays at rest until an outside force acts on it |
What is the total length of the paths between two points? | distance |
What is the combination of two or more forces acting in the same direction called? | net force |
The change in velocity during a particular time period refers to what? | acceleration |
What is the force between surfaces that resists the movement of one surface past another? | friction |
According to Newton's 2nd law, the greatest force would come from what kind of hammer? | a heavy hammer swung quickly |
What is the equation for Newton's 2nd law? | F = M X A |
This includes both direction and shortest distance. | displacement |