DCP #3

During which segment is the object moving at the fastest speed?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

During which segment is the object increasing speed?

• X

• Y

• Z

Tags

CCSS.HSF.IF.B.4

During which segment is the object travelling at constant speed?

• X

• Y

• Z

Tags

CCSS.HSF.IF.B.4

During which segment is the object stationary?

• A

• B

• C

• D

During which segment is the object motionless?

• L

• M

• N

According to the law of Action-Reaction, forces occur in equal and opposite pairs. So, if you push on a tree with a force of 20 N, the tree will push back on you with a force of -

• 20 N

• 40 N

• 10 N

• 70 N

Tags

NGSS.MS-PS2-1

A 20 kg bike accelerates at 10 m/s² toward a wall. How do you calculate the amount of force it will exert if it crashes into the wall?

• 20 ÷ 10

• 20 x 10

• 10 ÷ 20

• 20 + 10

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When a single washer is slid at a stack of washers it will cause the washer on the bottom to be knocked out without affecting the rest of the stack. This is due to -

• Inertia
• The fact that forces occur in equal and opposite pairs
• Magnetic fields
• Gravity

Tags

NGSS.MS-PS2-1

As a person swims freestyle, they move water backward with their hand. This causes the water to -

• Push the swimmer backward

• Push the swimmer forward

Tags

NGSS.MS-PS2-1

Moving an empty wheelbarrow requires _______ moving a wheelbarrow full of rocks.

• less force than

• more force than

• the same force as

Tags

NGSS.MS-PS2-2