Forces 1

Question 1

What is a force?

Answer 1

A push or pull that acts on an object due to the interaction with another object.

Question 2

What are the units of force? Abbreviation?

Answer 2

newtons (N)

Question 3

List the three non-contact forces

Answer 3

Gravitational force, electrostatic force and magnetic force.

Question 4

Name the force represented by the red arrow

Answer 4

Upthrust.

Question 5

Name the force represented by the purple arrow

Answer 5

Tension.

Question 6

Name the force represented by the black arrow

Answer 6

Normal contact force.

Question 7

Give the equation that links the weight (W) of an object, its mass (m) and the gravitational field strength (g)?

Answer 7

weight = mass x gravitational field strength.

Question 8

What is the value of the gravitational field strength on Earth?

Answer 8

9.8 N/kg.

Question 9

Name a device that can be used to measure an object’s weight

Answer 9

Calibrated newtonmeter.

Question 10

What are the units of gravitational field strength?

Answer 10

N/kg.