Force and Motion - Science Flashcards
A doorknob is an example of a ____________
wheel and axle
Part of a flagpole is an example of a ________
Pulley
A see-saw is an example of a _____
lever
A jar lid is an example of a ______
screw
A knife is an example of a _____
wedge
A wheelchair ramp is an example of an _____ _______.
inclined plane
A child kicking a wall that is rolled to her, and its direction changing is an example of ________________
work being done
Mercury is a planet that has a smaller mass than Earth, therefore, you would weigh _____ on Mercury because of gravity
LESS
The force of gravity increases when the height of an object _______ and the mass of an object ________
Increases, increases
An empty shopping basket would have ____ _____ when it is pushed across the ground than a full shopping basket
less friction
If two boys are arm wrestling and one boy is able to push the other boy’s arm to the table, the forces are __________.
unbalanced
A car traveling at 45 miles per hour is an example of _______.
speed
A car turning right is an example of ________.
acceleration
A car traveling at 55 miles per hour going east is an example of ________.
velocity
The ball rolls slower as it rolls across the gravel. This is an example of ________.
friction
