WorksheetsForces and Energy (Review)-23
Total questions: 21
Worksheet time: 46mins
The force that pulls things toward earth.
Friction
Gravity
At which letter is potential energy the highest? (6.8A)
b
c
a
d
At which letter is kinetic energy the highest? (6.8A)
a
b
c
d
When a lion eats a zebra and then uses the energy from the zebra to run, the lion's body converts-(6.9C)
chemical energy to mechanical energy
electrical energy to chemical energy
chemical energy to light energy
mechanical energy to chemical energy
As a boulder rolls from the top of the hill to the bottom, how does its potential and kinetic energy change? (6.8A)
Potential and kinetic energy both increase
Potential increaes and kinetic decreases
Potential decreases and kinetic increases
Potential and kinetic energy both decrease
______________ is a force that always acts in the direction opposite of motion.
applied
friction
gravity
normal
___________ forces always cause an object's motion to change.
balanced
unbalanced
contact
non-contact
What is being exerted on the soccer ball by the player?
Gravity
Air Resistance
An Unbalanced Force
A balanced Force
Why does a book on a table not move?
No forces are acting on the book
Gravity is the only force acting on the book
Forces of the table pushing up and gravity pulling down are balanced
If the car in the diagram rolls faster and faster as it moves down the ramp, you can be sure that
there is no friction acting on the object.
the forces acting on it are unbalanced.
the net force on the car is 0 N.
only gravity is acting on the car.
