Force and Motion Practice Test

Molly drives 100 km for 2 hours, rests for 0.5 hours and finishes her trip by driving an additional 75 km in 1 hour. What was her average speed during her car trip in km/hr?

• 45 km/hr

• 50 km/hr

• 55 kn/hr

• 60 km/hr

Bob performs an experiment where he uses different lengths of ramps to load heavy boxes with a dolly into a moving van. Which of the following conclusions can Bob make about how to safely move the cart?

• The taller the ramp, the more force you need to move the box

• As the length of the ramp increases, the amount of force needed decreases

• It is easier to move objects on a cart than it is to move them by hand

• The amount of force needed to move an object never changes as you move a particular item.

Tags

NGSS.MS-PS2-2

The archer above shoots an arrow toward a target. Which object has the GREATEST kinetic energy?

• target

• archer

• bow

• arrow

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the average speed of the rolling soccer ball?

• 1 m/s

• 2 m/s

• 0.2 m/s

• 0.5 m/s

Tags

NGSS.MS-PS3-1

Fido got out of his fenced yard and went wandering.What was the fastest segment of Fido's day outside the fence as he ran away?

• A-B

• B-C

• C-D

• D-F

Tags

NGSS.MS-PS3-1

What likely happened at points B-C?

• He stopped

• he ran quickly

• he walked slowly

• he ran back home

Tags

NGSS.MS-PS3-1

Betty's family is moving to a new house, so her father rented a moving truck for the day. A ramp pulls out of the truck bed. The bed of the truck is 2.5 feet high, and the ramp is 6 feet long. Betty makes two statements about the truck ramp: Statement 1: The ramp is an inclined plane, and we will have to move the boxes a longer distance to get them into the truck than if we lifted them straight up. Statement 2: Using the inclined plane will require less effort.

• Statement 1 is true and statement 2 is false.

• Statement 1 and 2 are both true

• Statement 1 is false and statement 2 is true.

• Statement 1 and 2 are both false

Using an inclined plane while lifting a heavy object will

• reduce the distance to lift the object

• increase the force needed to lift the object

• change the mass of the object

• reduce the force needed to lift the object

Which of the statements is true about the object's motion?

• In segment B and C, the object is moving quickly

• Between sections B-D the object is increasing in speed

• Between section E-F the object is increasing speed

• The object is moving the fastest between D-E

Tags

NGSS.MS-PS3-1

When a basketball is thrown into the air toward the hoop the ball will

• slow down, change direction, then speed up as it falls to the ground.

• speed up, keep its same direction, and then slow down as it falls to the ground

• travel at the same speed until it hits the ground

• travel in the same direction until it hits the ground

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5