Hi Please Answer These Thank you, -Clara Grace
How does this splitting wedge make work easier?
A decrease the applied force decreases the applied force
B increases the applied force increases the applied force
C changes the direction and amount of force changes the direction and amount of force
D changes the direction of the applied force
Change in Temperature
Temperature light on °C Temperature light off °C
Time
(min) Sand Water Time
(min) Sand Water
Start 22 22 Start 58 30
1 26 24 1 52 30
5 36 26 5 46 30
10 44 28 10 36 28
15 58 30 15 26 26
Josh did an experiment recording the changes in temperature in sand and water when exposed to a light source, and then when the light source was removed. Josh noticed that the sand heated up faster than the water and then cools faster than the water. Josh concludes that
Responses
A water is the better insulator.water is the better insulator.
B sand has a higher heat capacity. Sand has a higher heat capacity.
C sand is the better insulator. Sand is the better insulator.
D water is the better conductor. Water is the better conductor.
A man is pushing a heavy crate up an inclined plane (ramp) into the back of semi-trailer. What can the man do to make it easier to get the crate up the ramp?
Responses
A Pull it instead of push it.Pull it instead of push it.
B Make the ramp shorter. Make the ramp shorter.
C Make the ramp longer. Make the ramp longer.
D Use gloves.
Which of these would have the greatest potential energy?
Responses
A A roller coaster at the top of a hill.
B A roller coaster half-way down the hill.
C A roller coaster at the bottom of the hill.
D A roller coaster half-way up the hill.