Magnets
What is the name of the force that pulls magnets together?
Attract
What is the name of the force that pulls things down on Earth?
Gravity
What is the name of the force that slows things down?
Friction
What do we call it when we mix two or more materials together?
A mixture
What tool would you use to measure the length of something?
A meter tape
What is the name of the force that pushes magnets apart?
Repel
Student A pushes with 400 pounds of force. Student B pushes on the other side of the cart. The cart does not move. How much force is is student B applying?
400 pounds
What unit do we use to measure distance?
centimeters or meters
What do we call it when a solid dissolves in a liquid?
A solution
What tool would you use to measure the mass of something?
A balance
A scholar tests several types of magnets. Which observation could best help her compare the strength of different magnets?
a. shape
b. weight
c. materials attracted
d. distance objects are when attracted
D
A ball starts at the top of a ramp. Another ball starts at the bottom of a ramp. Which ball would require the largest force to stop when it reaches the wall? Explain how you know.
The ball at the top of the ramp would require more force because it is going faster since it starts at the top of the ramp.
A ball starts at the top of a ramp. At which point is the ball moving the fastest?
3
A spoon of baking soda is 15 g. A cup of vinegar is 100 g. These materials are mixed together in an airtight cup (nothing can escape). When the materials are put together they start to bubble. When the bubbling stops the materials are weighed. What do you expect the mass of the mixture to be now?
The same as before since the cup is airtight, 115 g
Decide which ones are cause and effect.
1. Twirly birds can spin fast.
2. If you kick a ball it will go high in the air.
3. The steeper the ramp, the faster a ball will roll.
4. I drove 3 miles in 5 minutes.
2 and 3
What is the name of the area around a magnet that can attract and repel things?
Magnetic Field
What is the difference between a balanced and unbalanced force?
A balanced force has no motion, an unbalanced force has motion
A ball starts at the top of a ramp. Another ball starts at the bottom of a ramp. Which ball which roll further? How do you know?
The one starting at the top because it will be going faster.
A student adds 2 spoons of solid to 50 mL of water and stirs to mix. The solution is clear after mixing. One spoon of solid has a mass of 10 g. What is the mass of the solution? (1 g = 1 mL)
70 grams
A student has a ball of clay that weighs 2000 grams. She shapes it into 4 equal size cubes and weighs it again. How much would each cube weigh?
500 grams
Decide if each picture shows attract, repel, balance or unbalance
Teacher will determine
Look at the picture on the board. Name all the forces acting on these chairs.
Push, gravity, ground pushing up
Come up with a cause and effect sentence about motion.
Teacher will determine
Why does a mixture get lighter when a chemical reaction occurs? (For example - baking soda and vinegar)
The liquid turns to gas and floats out of the cup, making it lighter.
Look at the data table. The pattern in the table helps predict how far the car will travel. Based on the pattern, what distance will the car travel in trial 5?
17