Unit 1 Review

Velocity and acceleration cannot be in opposite directions.

• TRUE
• FALSE

What does the slope of a velocity vs. time graph represent?

• displacement
• velocity
• acceleration
• time

Once an object starts moving, there is no way to ever stop it.

• True

• False

• Depends on the object

Tags

NGSS.HS-PS2-1

After a soccer ball is kicked, it begins to slow down. This means there are forces acting on the ball to slow it down.

• True

• False

• Science can't answer this question

Tags

NGSS.HS-PS2-1

If I throw a ball at the wall, the wall will hit the ball

• With less force

• With more force

• With an equal amount of force

• I'm not allowed to throw the ball in the house, so I cannot answer this question

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

Two cars are travelling at 75 km/h in different directions. Do they have the same speed and velocity?

• Same speed, different velocity

• Different speed, same velocity

• Same speed, same velocity

• Different speed, different velocity

All objects in free fall accelerate at 10 m/s². If I drop a rock off a bridge, how fast will the rock be accelerating after 8 seconds?

• 80 m/s²

• 40 m/s²

• 10 m/s²

• 160 m/s²

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

If all objects accelerate at the same rate, why don't a feather and bowling ball travel together when dropped at the same time?

• Wind resistance on the bowling ball

• Wind resistance on the feather

• The bowling ball is heavier

• Feathers fly, obviously

Tags

NGSS.HS-PS2-1

If I hit a golf ball in space, the ball will travel forever (assuming nothing stops it). The ball will not accelerate forever because

• It is already slowing down

• The force determines the maximum speed

• Space has no wind resistance

• Objects in space cannot accelerate

Tags

NGSS.HS-PS2-2

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Tags

NGSS.3-PS2-1