Physics Semester 1 Practice Exam

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What does the area under a velocity-time graph represent?

Back

The area under a velocity-time graph represents the displacement of the object over the time interval.

Front

Where does the net force act on an object in circular motion at the top of a loop?

Back

The net force acts towards the center of the circle.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

How do you calculate acceleration?

Back

Acceleration (a) can be calculated using the formula: a = F/m, where F is the net force applied and m is the mass of the object.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m * a, where F is force, m is mass, and a is acceleration.

Front

What is frictional force?

Back

Frictional force is the force that opposes the relative motion of two surfaces in contact.

Front

What is tension force?

Back

Tension force is the force transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is the difference between velocity and speed?

Back

Velocity is a vector quantity that includes both speed and direction, while speed is a scalar quantity that only measures how fast an object is moving.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = m * v.