2nd Law Review

Open Ended

What forces are being applied to this object?

Multiple Choice

Which will require more force to get it to the top of a hill? Why?

• The truck will require more force because it has more mass.

• The car will require more force because it has less mass.

• Both vehicles will require the same amount of force.
• The truck will require more force because gravity affects it more.

Multiple Choice

What is the equation for calculating force?

• F = m + a
• F = m / a
• F = m - a
• F = m x a

Multiple Choice

After jumping out of an airplane and prior to deploying her parachute, Ms. Soria, with a mass of 72 kg jumped out of an airplane reached a constant velocity (acceleration) of 8m/s downward. What is the net force acting on the skydiver?

• 9 N

• 80 N

• 64 N

• 576 N

Multiple Choice

A student is trying to hurry to their favorite class, science, but has too much crap in their backpack. The student pulls with a force of 25 N, but the backpack has a mass of 150 kg. What is the acceleration of the backpack?

• 0.166 m/s²

• 1.0 m/s²
• 3,750 m/s²

• 125 m/s²

Multiple Choice

If we applied the same amount of force to the truck as we did the car, what would the truck's acceleration be?

• 5 m/s²
• 7.5 m/s²
• 10 m/s²
• 15 m/s²

Multiple Choice

What is the net force

• 10 N
• 0 N
• 25 N
• 1 N

Multiple Choice

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Multiple Choice

Which of the following best describes the difference between speed and velocity?

• Velocity includes direction, speed does not.

• Speed and velocity are the same thing.

• Velocity is always greater than speed.

• Speed includes direction, velocity does not.

Multiple Choice

The roller coaster zooms at 60 km/h.

• Speed

• Velocity

Multiple Choice

Jordan runs at 5 m/s north across the soccer field.

• Speed

• Velocity

Multiple Choice

The classroom hamster sprints at 2 m/s inside its wheel.

• Speed

• Velocity

Multiple Choice

A scooter zooms along at 15 m/s to the right to deliver pizza.

• Speed

• Velocity

Multiple Choice

Ms. McDermott jogs at 8 km/h before school.

• Speed

• Velocity

Multiple Choice

Acceleration is the change in ___

• velocity
• mass

• speed

• force

Multiple Choice

1. The Skateboard Launch
Jordan pushes off the ground and the skateboard goes faster and faster.

• Speeding Up

• Slowing Down

• Changing Direction

Multiple Choice

2. The Brakes on the Bike
A student slams on the brakes while riding a bike, and the bike quickly comes to a stop.

• Speeding Up

• Slowing Down

• Changing Direction

Multiple Choice

3. The Soccer Ball Kick
A soccer ball rolls across the field, and then a player kicks it so it suddenly goes faster.

• Speeding Up

• Slowing Down

• Changing Direction

Multiple Choice

4. The Roller Coaster Turn
The roller coaster keeps the same speed but makes a sharp turn around the track.

• Speeding Up

• Slowing Down

• Changing Direction

Multiple Choice

5. The Car at the Red Light
A car sits at a red light. When the light turns green, it takes off down the road.

• Speeding Up

• Slowing Down

• Changing Direction

Multiple Choice

6. The Ice Cream Truck
The ice cream truck drives down the street, then slows down to stop when kids wave it over.

• Speeding Up

• Slowing Down

• Changing Direction

Multiple Choice

7. The Frisbee Curve
A frisbee flies through the air in a curved path even though its speed stays the same

• Speeding Up

• Slowing Down

• Changing Direction

Multiple Choice

8. The Teacher’s Coffee Sprint
Mr. Cline spots the last cup of coffee in the teacher’s lounge and suddenly starts running to grab it first.

• Speeding Up

• Slowing Down

• Changing Direction

​8. The Teacher’s Coffee Sprint
Mr. Cline spots the last cup of coffee in the teacher’s lounge and suddenly speeds up to grab it first.

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