Forces
Motion
Energy
Machines
Random
100
How can friction be increased or decreased?
Roughing the surface or making it smoother.
100
What force slows down motion on a gravel road?
friction
100
Name 3 examples of chemical energy.
Gas, fossil fuels, a match, wood
100
Which of the following are simple machines (3) Car Pencil sharpener Hammer Wheel barrow Bicycle Teeth Ramp
Hammer, teeth, ramp
100
Give an example of convection.
Rising steam, boiling water, hot air balloon
200
If you increase GRAVITY, then _________ will also increase.
weight
200
If you fall out of your chair, what force is pulling you down?
gravity
200
What type of energy is released when the nucleus of an atom is split?
nuclear
200
Pulleys are used to (blank) things.
pull or lift
200
What do we have weight?
gravity
300
If you apply a force to a ball, what direction will the ball in?
The direction you push it in, the direction of the force
300
What force causes metals to attract or repel?
magnetism
300
A light bulb gives off (blank) and (blank) energy.
thermal and electromagnetic (light)
300
How does an inclined plan make work easier?
Let’s you exert force over a longer distance.
300
How would you slow down a car on a ramp?
Increase the friction, make the surface rough.
400
If a ball is rolling down a ramp and a force is applied in the opposite direction, what will happen to the ball?
The ball would go back up the ramp if enough force is applied.
400
When a tennis player hits a tennis ball during a match, what happens to the direction of the ball?
The direction of the tennis ball is changed.
400
What type of heat transfer FROM THE SUN warms the sand at the beach?
radiation
400
A wheel barrow is made of what simple machines?
Inclined Plane, wheel and axle, lever What is
400
If something is a good conductor of heat, does it get hot fast or slow?
Fast, or quickly
500
A book is sitting on a desk, motionless. The book has a force of 25 Newtons, how much force is the desk applying to the book and in what direction?
25 Newtons, up
500
Why would an object weigh more on Jupiter than on Earth?
Jupiter has more gravity than the Earth.
500
Rising steam is an example of what heat transfer?
convection
500
A bicycle is made of what simple machines?
Lever (brake handles) Wheel and axel (Wheels) Pulley (chain) Inclined plane (seat)
500
Which object will travel the farthest? A. ---> O B. --->O <--- C. ---------->O D. --->O<---------
C!
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