Experiment Lab
You want to test how height affects bounce.
What variable must stay the same: ball type or height?
Ball Type
Magnets push or pull using what force?
Magnetism
Which has more friction: tile or carpet?
Carpet
What tool measures distance?
Meterstick/ruler
If time increases when sliding down a ramp, friction is high or low?
High
What is the variable you change on called?
independent variable
A magnet that picks up 20 clips is ___ than one that picks up 8.
Stronger
Friction makes objects move faster or slower?
Slower
What tool measures mass?
Balance scale/triple beam balance
3 magnets pick up 9 clips. 6 magnets would pick up about ___.
About 18
Why do scientists repeat trials?
To make results more accurate/reliable
If you stack two magnets together, what usually happens to the force?
It increases
A block slides fastest on wood and slowest on sandpaper.
Which surface has the MOST friction?
Sandpaper
Which tool measures temperature?
Thermometer
Which shows strongest magnetic force:
4 clips, 8 clips, or 15 clips?
15 clips
Select TWO ways to make an experiment fair:
A) change everything
B) keep constants the same
C) measure carefully
D) guess
B and C
Order weakest to strongest:
A = 6 clips
B = 14 clips
C = 10 clips
A, C, B
Name TWO ways to test friction.
Examples:( Answer will vary)Roll objects on different surfaces, slide blocks on ramps
To measure how far a marble rolls, you would use what tool?
Meterstick
A ramp test shows:
Wood = 2 sec
Cloth = 4 sec
Carpet = 6 sec
Which is fastest?
Wood
A student changes BOTH height and mass at the same time.
Why is this a problem?
You can’t tell which variable caused the change
Explain why adding magnets changes the number of clips picked up.
More magnets create a stronger magnetic force
Why does a metal block slide faster than a rubber block on the same ramp?
Less friction
A student is testing how the height and mass of a ball affect the size of a crater in sand.
Which TWO tools are MOST necessary to collect accurate data?
A. thermometer
B. meterstick
C. triple beam balance
D. magnet
B and C
Explain how friction affects motion using a complete sentence. (using correct vocabulary)
More friction decreases motion; less friction increases motion.