Motion and Matter Investigation 2.2 Practice Quiz

When a tree seed is hanging on a tree. Are the forces balanced? Mark two answers

• Yes, the forces are balanced.

• No, the forces are unbalanced.

• I don't know.

• Gravity is pulling down, the tree pulls with equal force.

If a large seed and a small seed fell off a tree at the same time, which would hit the ground first?

• The large seed.

• The small seed.

• They would hit the ground at the same time

• There is not information to predict.

A wheel and axle system with the same size wheels will travel in a ___________ pattern.

• straight

• curved

• wobbly

• zigzag

If a wagon had two small wheels on one side and two large wheels on the other side, how would the wagon travel?

• straight

• it would wobble

• it would curve to the left or right depending on which side they were on

• fast

If you a ball crashes into a pole with 300 units of force and the pole does not move. How much force did the pole apply to the ball?

• The pole doesn't exert a force because it is stuck to the ground.

• More than 300 units of force.

• Less that 300 units of force.

• Exactly 300 units of force.

Which variable does not affect how long a top will spin?

• Friction due to the surface the top is spinning on

• Color

• Force used to start the tops spinning

• Type of point the top spins on

• Size

If you wanted to gather evidence to confirm whether friction affects how long a top spins? What should you do first?

• Pick one top and time how ling it spins in different places of the room.

• Try each top in the same place in the room.

• Vote to see how many students think friction affects spin time.

• Look around the room and find rough and smooth surfaces to test.