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- Multiple ChoicePlease save your changes before editing any questions.
Friction is a force that acts in a(n) ___________ direction relative to a moving object.similaroppositeparallelperpendicular - Multiple ChoicePlease save your changes before editing any questions.What is the unit that measures force?WeightNet forceNewtonKilogram
- Multiple ChoicePlease save your changes before editing any questions.What type of friction acts on an object that is not yet moving?StaticDynamickineticRolling
- Multiple ChoicePlease save your changes before editing any questions.The wheels on a moving skateboard most likely experience ____________.Rolling FrictionSliding FrictionFluid FrictionStatic Friction
- Multiple ChoicePlease save your changes before editing any questions.These swimmers are most likely experiencing _________.Rolling FrictionSliding FrictionFluid FrictionStatic Friction
- Multiple ChoicePlease save your changes before editing any questions.As the child moves down the slide, they mostly experience the effect of ___________.Rolling FrictionSliding FrictionFluid FrictionStatic Friction
- Multiple ChoicePlease save your changes before editing any questions.How would the absence of friction affect a marble traveling on a long, straight path?The marble’s speed would decrease.The marble’s speed would increase.The marble would stop immediately.The marble would remain at a constant speed.
- Multiple ChoicePlease save your changes before editing any questions.Which of the following is an example of rolling friction?pushing a box across the floorriding a bike down a hilla hockey player skidding to a stopa soccer player making a slide tackle
- Multiple ChoicePlease save your changes before editing any questions.
Two factors affecting the magnitude of the force of gravity between 2 objects are...
mass and distancemass and volumedistance and weightweight and mass - Multiple ChoicePlease save your changes before editing any questions.As mass increases, what happens to the gravitational force?It increases.It decreases.It stays the same.It acts as a 3rd degree derivative function.
- Multiple ChoicePlease save your changes before editing any questions.As the distance between 2 objects increases, what happens to gravitational force?It increases.It decreases.It stays the same.Only Mr. Silvio knows what will happen.
- Multiple ChoicePlease save your changes before editing any questions.Which of the following will not change in different gravitational fields?weightforcemasspounds
- Multiple ChoicePlease save your changes before editing any questions.An object is falling but it is not accelerating. What do you know?Gravity is stronger than air resistance.Air resistance is stronger than gravity.Air resistance is equal to gravity.The forces of air resistance and gravity are unbalanced.
- Multiple ChoicePlease save your changes before editing any questions.
When does a falling object experience balanced forces?
When it reaches terminal velocityDuring free fallWhen it first starts to fallWhen it bounces up after hitting the ground - Multiple ChoicePlease save your changes before editing any questions.What is the rate at which Earth's gravity accelerates objects in free fall?9.8 m/s23.14159 km/hr/s13.7 m/s242 km/h/s