Fall Semester Physical Science Exam

What is the difference between distance and displacement?

• Distance is the total path length traveled; displacement is the shortest straight-line distance with direction.
• Distance and displacement are the same concept.
• Displacement measures the total distance traveled regardless of direction.
• Distance is always greater than displacement.

Sadie walks 2.75 km to the store to buy some groceries. She then takes the bus to the coffee shop 5.23 km away. After she gets her coffee she walks 3.25 km back home. What is the total distance Sadie traveled?

• 8.98 km
• 10.50 km
• 12.75 km
• 11.23 km

Omar loves to go to the lake on Sunday's to feed the ducks after church. He wakes up and drives 4.25 miles North to church, then he drive 2.75 miles West to feed the ducks at the lake after church. What is his current displacement?

• 5.06 miles
• 4.75 miles
• 6.00 miles
• 3.50 miles

Jayden runs 30 m West. He then turns around and walks 22 m East. What is his displacement?

• 22 m

• 30 m

• 8 m

• 52 m

Match the following types of speed to their correct definition.

• Speed that does not vary

• 
• Speed at any given point in time

• 
• Total distance traveled ÷ by total time

• 

Tags

NGSS.MS-PS3-1

Leroy is on a road trip across the country. He drives a total of 2659 miles. It took a total of 39 hours to get to California from North Carolina. What was his average speed?

• 68.18 miles per hour

• 80.26 miles per hour

• 75.13 miles per hour

• 55.77 miles per hour

Jacklyn is on a boat for 3.5 hours traveling at an average speed of 1.25 km/h. How far does she travel?

• 4.4 km

• 2.8 km

• 4.8 km

• .36 km

What is the difference between speed and velocity?

• Speed is a measure of distance; velocity is a measure of time.
• Speed can change direction; velocity cannot.
• Speed is always greater than velocity.
• Velocity includes direction whereas speed does not.

Maria is driving her car onto the highway. When she enters the ramp, her speed is 10 m/s. After 4 seconds, she’s going 30 m/s as she merges into traffic.

Is this an example of positive or negative acceleration?

• negative acceleration
• positive acceleration

If two forces acting on an object are equal, what is the net force?

• 10 N
• 5 N
• 2 N
• 0 N

Tags

NGSS.HS-PS2-1