Quiz on 4.6D - Force

Arjun and Olivia are helping Aria to push her shopping cart in a supermarket with a constant force. In this scenario, what is force?

• The capacity to do work

• The rate of change of momentum

• An interaction that when unopposed will change the motion of an object

• A measure of the gravitational pull on an object

Mason and Samuel are playing in the park. Jackson joins them and they start a game. Which of the following actions by Jackson is an example of force?

• Turning on the park light switch

• Pushing the park gate door

• Sitting on the park bench

• Pulling a chair from the picnic table

William and Anika are pushing a car in the same direction. What happens to the force they apply on the car?

• They subtract from each other

• They cancel each other out

• They combine or add up

• They have no effect on each other

James and William are playing tug of war. What happens when they pull the rope in opposite directions with equal force?

• They repel each other.

• They cancel each other out or result in a net force of zero.

• They combine to create a stronger force.

• They create a force in a random direction.

During a physics experiment, Avery dropped a metal ball onto a clay surface. Which of the following is an example of a force changing the shape of the object?

• Chemical reaction

• Mechanical deformation

• Thermal expansion

• Electromagnetic radiation

Daniel, Anika, and Maya are in a physics class. Their teacher asked them to identify the SI unit of force. What should they answer?

• Newton (N)

• Second (s)

• Meter (m)

• Kilogram (kg)

During a science fair, Jackson and Priya are demonstrating different types of forces. Scarlett is observing a floating balloon and wonders which force is acting on it from a distance. Which of the following is an example of the non-contact force acting on the balloon?

• Gravity

• Tension

• Friction

• Magnetism

Anika is pushing a sled with Scarlett and Evelyn on it. What is the formula she would use to calculate the force needed to push the sled?

• Force = Mass / Acceleration

• Force = Mass + Acceleration

• Force = Mass - Acceleration

• Force = Mass x Acceleration (F = ma)

Evelyn and Ethan are playing tug of war. Which of the following is an example of a balanced force in their game?

• Evelyn and Ethan pulling the rope in the same direction with different forces.

• Evelyn and Ethan pulling the rope in opposite directions with the same force.

• Evelyn pulling the rope towards herself while standing on a slope.

• Ethan pulling the rope towards himself while moving downhill.

Channing is trying to push his stalled car to make it move forward. Which of the following is an example of an unbalanced force?

• Channing pushing the car to make it move forward

• Leaving the car parked on a flat surface

• Channing pulling the car to make it move backward

• Channing sitting in the car while it is stationary