CBA 2 Review - Units 3 and 4

What is the curved path that an object follows when thrown or launched near the surface of the Earth?

• Terminal Velocity
• Projectile Motion
• Free Fall
• Gravity

Tags

NGSS.MS-PS2-2

Peanut ran 50 meters in 10 seconds.  What was Peanut's average speed?

• 2 m/s
• 5 km/h
• 5 m/s
• 5 m/s North

When a skydiver is falling through the air with their parachute open, they are in free fall.

• True

• False

When an object has a net force of 0 N, it is an example of what kind of force?

• Balanced
• Unbalanced
• Acceleration
• Gravity

If we drop a steel sphere and a ping pong ball, and there is no air resistance, the steel sphere will...

• hit the ground first because it has more mass

• hit the ground second because it takes longer to accelerate

• hit the ground at the same time as the ping pong ball

The force of __________________ is a type of friction that works against the motion of falling objects.

• Terminal Velocity
• Gravity
• Free Fall
• Air Resistance

If you traveled to Jupiter, what would change?

• Your weight and mass
• your weight
• your mass
• your height

Tags

NGSS.MS-PS2-4

Which of the options below is an example of velocity?

• 20 m/s
• 200 km/h
• 20 m/s East
• 20 East

Which of the following would NOT be considered a projectile?

• a cannonball thrown straight up

• a cannon ball rolling down a ramp

• a cannonball rolling off a table

• a cannonball thrown in the air

In the absence of air friction, the vertical (y) component of a projectile's velocity does NOT change as the projectile moves.

• True

• False

• Sometimes true

• Sometimes false