Science
What is required to move an object?
a. Motion
b. Gravity
c. Force
d. Friction
C. Force
A machine that has few or no moving parts...
a. Compound machine
b. Simple machine
b. Simple machine
What simple machine is a ramp?
a. Inclined plane
b. Pulley
c. Screw
d. Wedge
a. Inclined plane
What is work?
a. The force that slows the motion of objects
b. The result of force moving an object
c. The force that pulls objects towards earth
b. The result of force moving an object
A flat surface raised higher on one end, used to lift heavy objects.
a. Pulley
b. Screw
c. Inclined plane
c. Inclined plane
A force is a _________ or a _________ that causes movement.
a. Push, shove
b. Push, pull
B. Push, pull
Which is a wedge?
a. Whisk
b. Knife
c. Spatula
d. Jar lid
b. Knife
What simple machine is used to raise a flag?
a. Wedge
b. Pulley
c. Inclined plane
d. Screw
A compound machine...
a. Makes someone do more work.
b. Is made of two or more simple machines
c. Has two levers
d. Used to join objects
b. Is made of two or more simple machines
A rod attached to a wheel; used to turn things
a. Wheel and axle
b. Lever
c. Pulley
a. Wheel and axle
Simple machines make work....
a. Harder
b. Shorter
c. Longer
d. Easier
D. Easier
Which a screw?
a. Knife
b. Spatula
c. Jar lid
d. Whisk
c. Jar lid
What uses a wheel and axle?
a. Flag
b. Knife
c. Ramp
d. Skateboard
d. Skateboard
Which is NOT a compound machine?
a. Bulldozer
b. Wheelbarrow
c. Bicycle
d. Hammer
d. Hammer
A wheel that has a rope wrapped around it; used to lift heavy objects
a. Pulley
b. Inclined plane
c. Screw
a. Pulley
____________ when a force changes the motion of an object or causes it to move.
a. Energy
b. Fulcrum
c. Work
c. Work
Identify ALL the simple machines (there's 6)
a. Lever
b. Wedge
c. Pulley
d. Ramp
e. Inclined plane
f. Jar lid
g. Screw
h. Wheel and axle.
i. Scissors
a. Lever
b. Wedge
c. Pulley
e. Inclined plane
g. Screw
h. Wheel and axle
The sum of all forces on an object...
a. Friction
b. Net force
c. Motion
d. Force
b. Net Force
Which simple machine helps cut or split objects?
a. Pulley
b. Wedge
c. Wheel and axle
Wedge
A spirally grooved cylinder that holds objects together.
a. Wheel and axle
b. Pulley
c. Screw
c. Screw
A force can change the direction of an object.
a. True
b. False
a. True
Which one is a lever?
a. Skateboard
b. Seesaw
c. Slide
e. Flag
b. Seesaw
What causes a change in motion?
a. Potential energy
b. Kinetic energy
c. Friction
d. Force
d. Force
A stiff bar that moves around a fixed point that is used to push, pull, or lift objects.
a. Lever
b. Wheel and axle
c. Pulley
a. Lever
Which simple machines are used to make this compound machine work? (On canvas)
a. Pulley and wheel and axle
b. Lever and wheel and axle
c. Pulley and lever
c. Pulley and lever