Forces, Speed, Time, Acceleration, Weight, Mass

Explain the concept of force.

• Force is the temperature of an object.

• Force is a push or pull exerted on an object.

• Force is the resistance of an object to motion.

• Force is the speed at which an object moves.

Tags

Forces

Which statement describes the action shown best?

• A pull force is exerted on the cloth.

• A pull force is exerted on the cloth.

• Both a push and pull forces are exerted on the cloth.

• Friction is the main force being exerted on the cloth.

Tags

Forces

Which pair contains a contact and a non-contact force?

• Air resistance & Normal force

• Gravity and Water resistance

• Friction and elastic force.

• Magnetic force and electrostatic force

Tags

Forces

Which statement about forces is correct?

• A force is a scalar quantity with only magnitude.

• A force is a scalar quantity with magnitude and direction.

• A force is a vector quantity with only magnitude.

• A force is a vector quantity with magnitude and direction.

Tags

Forces

Name this instrument used to measure force and the units for force.

• Measuring cylinder, kg

• Newton meter, N

• Pan balance, kg

• Weighing scale, N

Tags

Forces

A force cannot...

• change speed.

• change mass.

• change shape.

• change position.

Which surface would you expect the most friction?

• 
• 
• 
• 

Tags

Forces

Friction is always a dangerous force.

• True

• False

Tags

Forces

Will the car accelerate? Why?

• No, there is no resultant force.

• No, the forces are not in equilibrium.

• Yes, there is a resultant force of 80 N to the right.

• Yes, there is a resultant force of 100 N to the right.

Tags

Forces

A student walks 400 m in 8 minutes. What is their speed in m/s?

• 50 m/s

• 1.2 m/s

• 6.7 m/s

• 0.83 m/s

Tags

Forces